irt eurocard 2 x 2 relay switcher for hd, sdi, g.703 or ...€¦ · ams‐4171 instruction book...
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AMS‐4171 Instruction Book Revision 2
www.irtelectronics.com Page 1 of 17 4171‐AMS_ib_Rev2.doc
IRT Eurocard
Type AMS‐4171
2 x 2 relay switcher for HD, SDI, G.703 or analogue video
& AES, RS422 or stereo audio signals
Designed and manufactured in Australia
IRT can be found on the Internet at: http://www.irtelectronics.com
I R T Electronics Pty Ltd A.B.N. 35 000 832 575 26 Hotham Parade, ARTARMON N.S.W. 2064 AUSTRALIA National: Phone: (02) 9439 3744 Fax: (02) 9439 7439 International: +61 2 9439 3744 +61 2 9439 7439 Email: [email protected] Web: www.irtelectronics.com
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IRT Eurocard
Type AMS‐4171
2 x 2 relay switcher for HD, SDI, G.703 or analogue video
& AES, RS422 or stereo audio signals
Revision History
Revision Date By Change Description Applicable to: 0 16/04/2008 AL Original Issue. S/N: > 0804001 1 16/02/2009 AL Link setting changes for issue 4 PCB. Issue 4 PCB. 2 29/06/2010 AL Issue 4 PCB never made. Link settings corrected for all
units ever made. SNMP functions updated. All units.
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IRT Eurocard
Type AMS‐4171
2 x 2 relay switcher for HD, SDI, G.703 or analogue video
& AES, RS422 or stereo audio signals
Instruction Book
Table of Contents Section Page Revision History 2 Operational Safety 3 General Description 4 Technical Specifications 5 Pre‐Installation 6 Configuration 7 Installation & Operation 8
SMU‐4000 Installation 11 Figure 1: SMU‐4000 module 11
Front & rear panel connector diagrams 12 SNMP – What Is It? 13
AMS‐4171 SNMP Functions 15 Maintenance & Storage 16 Warranty & Service 16
Equipment return 16 Drawing Index 17
This instruction book applies to units with serial numbers > 0804001.
Operational Safety:
WARNING
Operation of electronic equipment involves the use of voltages and currents that may be dangerous to human life. Note that under certain conditions dangerous potentials may exist in some circuits when power controls are in the OFF position. Maintenance personnel should observe all safety regulations.
Do not make any adjustments inside equipment with power ON unless proper precautions are observed. All internal adjustments should only be made by suitably qualified personnel. All operational adjustments are available externally without the need for removing covers or use of extender cards.
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IRT Eurocard Type AMS‐4171
2 x 2 relay switcher for HD, SDI, G.703 or analogue video
& AES, RS422 or stereo audio signals
General Description
The AMS‐4171 consists of one “video” and two “balanced audio” switches. Each switch is arranged as a changeover set with two inputs and two outputs. No terminations are provided on the board allowing the switcher to be used in a wide variety of applications and with signals of various types and impedances.
The “video” path uses enhanced performance relays to provide switching capabilities for high‐speed data signals up to 1.485 Gb/s and may be used with analogue video, SDI, HDSDI1, ASI or G.703 data signals.
The “audio” path may be used for balanced or unbalanced audio or control signals (RS232, RS422, RS485 etc).
The AMS‐4171 is ideally suited to applications where a simple choice between two inputs or outputs is required and may be easily driven by audio, video or other detector circuits for automatic path selection.
Front panel switches allow a choice of local or remote control operation.
Front panel LED indicators are used to indicate the status of each relay circuit.
Remote control is via a switch to ground connection, where video and audio may be operated independently or with audio following video by means of link settings.
An optional SNMP (Simple Network Management Protocol) plug‐in module is available for remote monitoring and control when used in conjunction with IRT’s 4000 series frame fitted with SNMP capability.
The AMS‐4171 is designed to fit IRT’s standard Eurocard frames as well as IRT’s 4000 series frame for use with IRT’s SNMP system and may be used alongside any other of IRT’s analogue or digital Eurocards. Standard features:
• One video and two balanced audio changeover switches in one package
• Video path suitable for HDSDI* (1.485Gb/s), SDI , analogue video, ASI data streams and G703 signals @ 2, 8, 34, 45, 144, 155Mb/s
• Audio path suitable for 2 balanced, or 4 unbalanced, audio or data signals
• Married or independent operation
• Default path on power fail
• Local or remote control
• Optional plug‐in SNMP monitoring and control module
• Front panel LED status indicators
NOTE: 1 For HDSDI applications, it is recommended that the AMS‐4171 be used in either IRT’s 1RU or 4000 series 3RU frames only.
VIDEO A I/P
AMS-4171 FUNCTIONAL BLOCK DIAGRAM
VIDEO B I/P
VIDEO A O/P
VIDEO B O/P
AUDIO B (L) O/P
AUDIO A (L) O/P
AUDIO B (L) I/P
AUDIO A (L) I/P
AUDIO B (R) O/P
AUDIO A (R) O/P
AUDIO B (R) I/P
AUDIO A (R) I/P
SNMP
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Technical Specifications
IRT Eurocard module Type AMS‐4171
Video Signal Path: Signal types HDSDI/SDI/ASI/G.703/Video Switching characteristic Non latching 4 port changeover relay. Video crosstalk between channels < ‐70 dB to 10 MHz. < ‐50 dB to 300 MHz. < ‐30 dB to 1.5 GHz. (With measured channel input terminated by 75 Ω)
Frequency response +0/‐0.5 dB 0 Hz to 750 MHz, +0/‐1.5 dB 750 MHz to 1.5 GHz
Return loss 25 dB @ 45 MHz 15 dB @ 270 MHz 15 dB @ 1.5 GHz Audio/Low speed Data: Audio Crosstalk Between channels with measured channel input terminated by 600Ω. Less than ‐90 dB (20 Hz ‐ 20 kHz). Auxilliary Data: Mode TTL level: Local = 0V (LOW); Remote = 4.5V (HIGH) via pull‐up resistor, or
open drain (link selectable). Data/Tally Relay changeover contact set. Common can be left open, or linked to
ground or +12V of the main board.
Control: Inputs Ground, or TTL compatible circuit with 2k2 internal pull‐up resistors to
+4.5V. Connectors: Audio: 5 pin plug in screw termination sockets. Control: 4 pin plug in screw termination socket. Other: Relay contact rating 24 Vdc ‐ 1 A 100 Vac ‐ 0.3 A Power requirements: 28 Vac CT (14‐0‐14) or ± 16 Vdc. Power consumption 1 VA. Temperature range 0 ‐ 50° C ambient Mechanical Suitable for mounting in IRT 19" rack chassis with input, output and
power connections on the rear panel. Finish: Front panel Grey background, black lettering & red IRT logo. Rear assembly Detachable silk‐screened PCB with direct mount connectors to Eurocard
and external signals. Dimensions 6 HP x 3 U x 220 mm IRT Eurocard. Supplied accessories Rear connector assembly with matching connectors for control and
audio inputs. Optional accessories SNMP plug‐in module for use with 4000 series frame fitted with SNMP
“Agent”.
Due to our policy of continuing development, these specifications are subject to change without notice.
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Pre‐installation: Handling: This equipment may contain or be connected to static sensitive devices and proper static free handling precautions should be observed. Where individual circuit cards are stored, they should be placed in antistatic bags. Proper antistatic procedures should be followed when inserting or removing cards from these bags. Power: AC mains supply: Ensure that operating voltage of unit and local supply voltage match and that correct rating
fuse is installed for local supply. DC supply: Ensure that the correct polarity is observed and that DC supply voltage is maintained within
the operating range specified. Earthing: The earth path is dependent on the type of frame selected. In every case particular care should be taken to ensure that the frame is connected to earth for safety reasons. See frame manual for details. Signal earth: For safety reasons a connection is made between signal earth and chassis earth. No attempt should be made to break this connection.
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Configuration Link Settings:
LK1 1‐2 Separate audio control. 2‐3 Audio follow video control. LK2 1‐2 If LK1 set for separate audio control (1‐2 position), set LK2 to 1‐2 position also. 2‐3 Local control selection tally at SK5‐3 output. Use only, if desired, when LK1 is in
the audio follow video setting (2‐3 position). LK3 Not fitted. LK4 1‐2 Relay K3 Common (SK6‐1 on rear assembly) set to +12Vdc via a 4R7 resistor.
2‐3 Relay K3 Common (SK6‐1 on rear assembly) set to Ground. OUT Relay K3 Common (SK6‐1 on rear assembly) open (floating). LK5 IN Local/Remote tally 4.5V via pull‐up resistor for Remote setting. OUT Local/Remote tally open drain for Remote setting.
Remote control mode: With the front panel Local/Remote switch set for remote control operation, control of the AMS‐4171 changeover relay is by a permanent ground contact only, via SK5 on the rear assembly.
Local control mode: With the front panel Local/Remote switch set for local control operation, control of the AMS‐4171 changeover relay is by front panel Main/Standby switch. Remote switching to Standby via SK5 is still possible even with the front panel Local/Remote switch set to local.
Input termination: No terminations are provided on the module so that the switcher can function in changeover mode.
For 2 x 1 switcher applications the following terminations are recommended be installed:
Video: Output A (Main) only is used and should be terminated at connected equipment. Output B (Standby) should be terminated in 75Ω (or 50Ω if being used for 50Ω RF signals) using a BNC termination plug.
Audio: Outputs A only are used and should be terminated at connected equipment. Output B may be terminated if desired by connecting termination resistors to the connector on the rear assembly of the module. The resistor values should be chosen to match the characteristic impedance of the rest of the connected audio system. For example for balanced 600Ω, two 300Ω resistors should be used. In most modern audio systems a low output impedance of approximately 40Ω and input impedances of greater than 10 kΩ are used. If this is the case no termination of the unused audio output is required.
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Installation & Operation
Installation in frame or chassis: See details in separate manual for selected frame type. See also Configuration section. Video (analogue, SDI, HDSDI, G.703 data) Signal connections: Signal connections are made to BNC coaxial connectors. No termination of inputs is provided on the module. When switched to the output the input load impedance is that of the load connected to the output. Where the input signal is required to be terminated, and one of the outputs is not connected to anything, then this unconnected output should be terminated by an appropriate BNC terminator of the required impedance, usually 75 Ohm.
Audio Signal connections: Audio signal connections are made to 5‐pin plug in screw terminating connectors. No termination of inputs is provided on the module. When switched to the output the input load impedance is that of the load connected to the output. There are four 5‐pin audio connectors (IN A / OUT A Left, IN B / OUT B Left, IN A / OUT A Right and IN B / OUT B Right). Common Ground between IN and OUT is shared via the middle pin (pin 3). For example:
When wiring, be sure to keep phase of audio cables the same. The above connector will take either a balanced input, balanced output audio (or data (RS‐232, RS‐422, etc.)) signal, or two unbalanced audio signals, where the ground connectors are commoned together and the two unbalanced audio signals connected to each of the +/‐ phase connections.
OU
T A
IN A
-
+
G-+
IN A
IN B
OUT B
OUT A
SK4
SK2
SK3
SK1
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Control connections: Video switch status is made by a relay contact on SK6 connector (Video Tally) located on the rear assembly. With pin 3 short circuited to pin 1 (pins 1 and 2 open circuited), module is in REST position, i.e. Input A (Main) to Output A and Input B (Standby) to Output B. Likewise, if pin 2 is short circuited to pin 1 (pins 1 and 3 open circuited) then module is in SET position, i.e. Input A (Main) to Output B and Input B (Standby) to Output A. Audio switch status is only possible when the AMS‐4171 is configured for audio follow video mode.
Video Tally input connector SK6 pin configuration is as follows: Pin Description 1 Relay common (contact connected to either +12Vdc via 4R7 resistor, ground, or
open via link LK4 position – see Configuration section). 2 Relay SET position – I/P B (Standby) selected. 3 Relay REST position – I/P A (Main) selected.
Remote control connections are via the SK5 connector located on the rear assembly.
Control input connector SK5 pin configuration is as follows: Pin Description 1 Video SET control – select Input B (Standby) to Output A. 2 RESET control – not used. For mag‐latch relays only (non standard). 3 Audio SET control (or Local/Remote tally indication if setup for audio follow video). 4 Ground.
Connecting the appropriate control input to ground will cause the relays to operate and the output state to cross over as follows:
Control Input Output SET (Gnd) A (Main) ↔ B B (Standby) ↔ A
Removing the ground connection will switch back the relays to the REST state.
A (Main) ↔ A B (Standby) ↔ B
With the unit set for audio follow video mode (LK1 in position 2‐3 state), grounding the video SET control (SK5‐1) will switch both the video and audio relays at the same time. The audio SET control (SK5‐3) no longer operates as a control port. With link LK2 in the 2‐3 position, SK5‐3 acts as a Local/Remote mode tally. This tally uses TTL logic to indicate local or remote setting. The local setting is indicated by approximately 0V (LOW) on pin 3 of SK5, whilst the remote setting, with link LK5 IN, is indicated by approximately 4.5V (HIGH) via a pull‐up resistor on the same pin, or with link LK5 OUT remote setting is indicated by an open drain output of a FET transistor.
1 2 3VIDEO TALLY
SK6
CONTROL1 2 3 4
SK5
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Front Panel controls: On the front panel there are two switches. The upper switch is a 2 way toggle switch for selecting between the inputs A (Main) and B (Standby). In order for this switch to operate the lower switch, which is a 2 way toggle switch, must be set to the Local position. With the lower switch set to the Remote position, the upper Input Select switch does not operate. With the Local/Remote switch set to the Local position, a red LED illuminates to give a visual warning indication that the unit is in local operation. The AMS‐4171 is controlled by a permanent ground contact closure. Even if the switcher was to be set to the Local position, local control will not operate whilst this remote control has control. With the switcher set to the Local control position, it is still possible for a remote control to operate (SET) and over‐ride the local control setting. With the AMS‐4171 configured for separate audio controls, the front panel local switch will only switch the video circuit. Audio will only switch by the local control if the AMS‐4171 is configured for audio follow video mode. Front panel LEDs give a visual indication of inputs selected. VID MAIN (Input A) LED is a green LED and indicates that the Video Input A (Main) is switched to Video Output A, and Video Input B (Standby) is switched to Video Output B. VID STANDBY (Input B) LED is a yellow LED and indicates that Video Input A (Main) is switched to Video Output B, and Video Input B (Standby) is switched to Video Output A. Likewise AUD MAIN (Input A) LED is a green LED and indicates that the Audio Input A (Main) is switched to Audio Output A, and Audio Input B (Standby) is switched to Audio Output B. AUD STANDBY (Input B) LED is a yellow LED and indicates that Audio Input A (Main) is switched to Audio Output B, and Audio Input B (Standby) is switched to Audio Output A.
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SMU‐4000 Installation The SMU‐4000 plug‐in SNMP management controller module can only be fitted to IRT’s 4000 series modules that are capable of being SNMP upgradeable. To determine whether a module is SNMP upgradeable, a square section on the main PCB is silk screened and fitted with three multipin sockets – as shown below:
This is where the SMU‐4000 plug‐in SNMP management controller module is fitted. The three sets of multipins on the underside of the SMU‐4000 line up with the three sets of multipin sockets on the main PCB module. Align all pins and then gently press the SMU‐4000 all the way down into place.
If the SMU‐4000 is not already programmed with the correct firmware to match the module that it is being plugged into, it then needs to be programmed via the pins on the topside of the SMU‐4000.
Note that installation will generally be done by IRT Electronics at the time of ordering. Note also that an SMU‐4000 will only be functionally operational when the main module that it is plugged into is fitted into an IRT SNMP capable frame fitted with a CDM‐xxxx SNMP agent and being interrogated by a suitable Network Management System.
1J2
1J1 1J3
Figure 1: SMU‐4000 module
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Front & rear panel connector diagrams The following front panel and rear assembly drawings are not to scale and are intended to show relative positions of connectors, indicators and controls only.
P4
P3
4 PORT CHANGE-OVER
IN A
IN B
OUT B
OUT A
CONTROL1 2 3 4
1 2 3VIDEO TALLY
SK5
SK6
SK4
SK2
SK3
SK1
OU
T B
IN B
OU
T A
IN A
LEFT AUDIO
RIGHT AUDIO -
+
G
-+
-
+
G
-+
-
+
G
-+
-
+
G
-+
DC
AMS-4171
N140
VID
STANDBY
MAIN
LOCAL
STANDBY
MAIN
AUD
LOCAL
REMOTE
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SNMP What Is It? SNMP stands for Simple Network Management Protocol. It is an application layer protocol for managing IP (Internet Protocol) based systems. SNMP enables system administrators to manage system performance, and to find and solve system problems. SNMP runs over UDP (User Datagram Protocol), which in turn runs over IP. Three types of SNMP exist: SNMP version 1 (SNMPv1), SNMP version 2 (SNMPv2) and SNMP version 3 (SNMPv3). It is not the intention here to discuss the differences between various versions, only to bring attention to the fact that IRT Electronics modules, fitted with SNMP capability, use SNMPv1. An SNMP managed network consists of three key components: Network Management Systems (NMS), agents, and managed devices. An NMS is the console through which the network administrator performs network management functions, such as monitoring status (e.g. alarm states) and remote controlling, of a set of managed devices. One or more NMSs must exist on any managed network. Generally the NMS is a computer running third party SNMP control software. There are a number of third party SNMP software applications currently available on the market. An NMS polls, or communicates with, an agent. An agent is a network management software module that resides in a managed device. An agent has local knowledge of management information and translates that information into a form compatible with SNMP. The agent, therefore, acts as an interface between the NMS and the managed devices. The NMS sends a request message, and control commands for the managed devices, to the agent, which in turn sends a response message, containing information about the managed devices, back to the NMS. A managed device contains an SNMP agent and resides on a managed network. Managed devices collect and store management information and make this information available to NMSs using SNMP. Managed device agent variables are organised in a tree structure known as a Management Information Base (MIB). Within the MIB are parameters pertaining to the managed device. An Object Identifier (OID) number within the MIB defines the managed device type. This is a unique number specific to the model of managed device. Other information relating to the device is also stored, information such as alarm states, controllable settings, etc. The MIB tree is organised in such a way that there will be no two MIB files with conflicting placements. Normally an NMS polls an agent for information relating to the MIB in a managed device to be sent back to the NMS. When certain conditions are met within the MIB, such as major alarm conditions, for example, the agent automatically sends what is known as a trap to the NMS without any prompting from the NMS. This allows automatic notification of a predetermined event.
NMS
NMS
IP Network
MIB
SNMP Agent
Protocol Engine SNMP Agent
MIB
SNMP Agent
Protocol Engine SNMP Agent
MIB
SNMP Agent
Protocol Engine SNMP Agent
SNMP Block Diagram IRT C
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SNMP with IRT Products: IRT Electronics currently employs SNMPv1 with its SNMP capable frames. The frame acts as an agent when fitted with a CDM‐xxxx module. This module has its own designated slot next to the power supply so as to not affect the number of modules that the frame will take. Communication between the NMS, the frame and its loaded modules are via this CDM‐xxxx module. Note that the NMS software is third party and not supplied by IRT Electronics. Ethernet connection for SNMP operation is via an RJ45 connector on the rear of the frame, below the mains inlet. Ethernet rate runs at either 10 baseT or 100 baseT. Frame parameters, such as Name, Address and Location, are set via an RS232 interface, a D9 connector on the rear of the frame below the mains inlet. A software terminal emulator, such as Tera Term or HyperTerminal, is used for setting and reading the parameters of the frame. IRT modules that are SNMP compatible need a plug‐in SMU‐4000 module with a program relevant to the module that it is plugged into. Depending on the module, besides the module identification, parameters such as alarm states, inputs and controls etc. are communicated to the CDM‐xxxx agent via a data bus on the rear of the frame. Thus the CDM‐xxxx collects information on what is loaded within the frame, what positions they occupy, and their current status for communication to the NMS when the NMS sends a request for information. In the event of a major alarm from any of the SNMP compatible modules, or power supplies, a trap is automatically sent by the CDM‐xxxx agent to the NMS without any prompting by the NMS. This alerts the operator to any fault conditions that may exist that need immediate attention.
FRU-4000FRAME110/240 V 50/60 Hz
0.7 A (max.)
FUSES
110/120 Vac1A S.B.
220/240 Vac500 mA S.B.
AS3260 approval no.: CS6346NAss. no.: 804692
+ -48Vdc
AlarmRS232
Ethernet
IRT SNMP Connections
IRT modules fitted with SMU-4000 PSU’s
CDM-xxxx
IRT SNMP Frame
IRT SNMP Frame
IRT modules fitted with SMU-4000 PSU’s
CDM-xxxx
IP Network
Ethernet Cable
Ethernet Cable
Ethernet Cable NMS
IRT SNMP Setup
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AMS‐4171 SNMP Functions: With the AMS‐4171 fitted with the optional plug‐in SMU‐4000 SNMP module, programmed with the firmware to suit and installed in an IRT 4000 series frame with SNMP capability, the unit can be interrogated by an SNMP Network Management System (NMS). The following SNMP functions are capable of being controlled an monitored by an NMS:
irt4171VideoStatus ‐ An indication of the state of the video relays [main (1), standby (2)]. Main defined as Input A connected to Output A and Input B connected to Output B. Standby defined as Input A connected to Output B and Input B connected to Output A.
irt4171AudioStatus ‐ An indication of the state of the audio relays [main (1), standby (2)]. Main defined as Input A connected to Output A and Input B connected to Output B. Standby defined as Input A connected to Output B and Input B connected to Output A.
irt4171LocalRemote ‐ An indication of the setting of the local/remote front panel switch [remote (1), local (2)]. SNMP control is disabled and front panel control is enabled if this switch is in the Local
position. External control via the rear assembly is always in operation.
irt4171VideoControl ‐ Set the position of the video relays [main (1), standby (2), notAvailable (3)]. Main defined as Input A connected to Output A and Input B connected to Output B. Standby defined as Input A connected to Output B and Input B connected to Output A. Not Available indicates that SNMP video control is not possible. This occurs when front
panel Local/Remote switch is in the Local position.
irt4171AudioControl ‐ Set the position of the audio relays [main (1), standby (2), notAvailable (3)]. Main defined as Input A connected to Output A and Input B connected to Output B. Standby defined as Input A connected to Output B and Input B connected to Output A. Not Available indicates that SNMP audio control is not possible. This occurs when front
panel Local/Remote switch is in the Local position.
irt4171Reset ‐ Unit reset control. A set with a value of 2 sent to this OID will cause a system reset to occur. When queried returns a Null.
irt4171Trap ‐ Enable or Disable Traps to be sent when the Video or Audio Status changes [enabled (1), disabled (2)].
irt4171TrapSeqNo ‐ Indicates a number that increases by 1 for every Trap sent.
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AMS‐4171 Instruction Book Revision 2
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Maintenance & Storage Maintenance: No regular maintenance is required. Care however should be taken to ensure that all connectors are kept clean and free from contamination of any kind. This is especially important in fibre optic equipment where cleanliness of optical connections is critical to performance. Storage: If the equipment is not to be used for an extended period, it is recommended the whole unit be placed in a sealed plastic bag to prevent dust contamination. In areas of high humidity a suitably sized bag of silica gel should be included to deter corrosion. Where individual circuit cards are stored, they should be placed in antistatic bags. Proper antistatic procedures should be followed when inserting or removing cards from these bags.
Warranty & Service Equipment is covered by a limited warranty period of three years from date of first delivery unless contrary conditions apply under a particular contract of supply. For situations when “No Fault Found” for repairs, a minimum charge of 1 hour’s labour, at IRT’s current labour charge rate, will apply, whether the equipment is within the warranty period or not. Equipment warranty is limited to faults attributable to defects in original design or manufacture. Warranty on components shall be extended by IRT only to the extent obtainable from the component supplier. Equipment return: Before arranging service, ensure that the fault is in the unit to be serviced and not in associated equipment. If possible, confirm this by substitution. Before returning equipment contact should be made with IRT or your local agent to determine whether the equipment can be serviced in the field or should be returned for repair. The equipment should be properly packed for return observing antistatic procedures. The following information should accompany the unit to be returned:
1. A fault report should be included indicating the nature of the fault 2. The operating conditions under which the fault initially occurred. 3. Any additional information, which may be of assistance in fault location and remedy. 4. A contact name and telephone and fax numbers. 5. Details of payment method for items not covered by warranty. 6. Full return address. 7. For situations when “No Fault Found” for repairs, a minimum charge of 1 hour’s labour will apply,
whether the equipment is within the warranty period or not. Contact IRT for current hourly rate. Please note that all freight charges are the responsibility of the customer. The equipment should be returned to the agent who originally supplied the equipment or, where this is not possible, to IRT direct as follows.
Equipment Service IRT Electronics Pty Ltd 26 Hotham Parade ARTARMON N.S.W. 2064 AUSTRALIA Phone: 61 2 9439 3744 Fax: 61 2 9439 7439 Email: [email protected]
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Drawing Index Drawing # Sheet # Description 805264 1 AMS‐4171 main circuit schematic. 805264 2 AMS‐4171 Power Supply. 805264 3 AMS‐4171 SNMP interface.
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SCALE Sheet
DO NOT COPY NORDISCLOSE TO ANY
THIRD PARTYWITHOUT WRITTEN
CONSENT
of
IRT Electronics Pty. Ltd.
Drawing No.
COPYRIGHT
ARTARMON NSW AUSTRALIA 2064
N.T.S.805264
Revision:Date:
329-Jun-2010
Title AMS-4171SIZE
A2
CHECKEDENG.APR.DRAWN
1 3
K.N.
PCB 805249
4 PORT CHANGE-OVER
21
LD1green
21
LD2yellow
21
R20560R
(MAIN)
12 F5
4R7
Relays shown in RESET or OFF position.
VIDEO+AUDIO RELAY MODULE
1A1B2A2B3A3B4A4B5A
6A6B7A7B8A8B
10A10B
5B
11A11B12A12B13A13B14A
15A15B
17A17B18A18B
9A9B
20A20B
14B
21A21B22A22B23A
24B24A
25B26A
27A27B28A
23B
19A19B
30A30B
26B
31A31B32A32B
25A
16A16B
28B29A29B
P1
DIN64
+5V
1 07-06-2007
(STANDBY)
+12V+12V
32
1 4
U2G3VM-351G
32
1 4
U1NU
SET
SET
13
2D6BAS16
13
2D5BAS16
21
R13270R
21
R16NU
+5V
21
R21560R
+5V
21
R15NU
21
R144K7
+5V +5V
7
810
K4C
6
53
K5B
7
810
K5C 6
53
K4B
7
810
K6C
6
53
K7B
7
810
K7C 6
53
K6B
AC-1AC-2AC-3AC-4
Power Supply
805264i3s2.sch
+12V
112
K4A
G5A-234P
112
K5A
G5A-234P
112
K6A
G5A-234P
112
K7A
G5A-234P
13
2D4
BAS16
'R AUDIO'
'L AUDIO'
TXRX
AC-1AC-2AC-3AC-4
AC-1
AC-2
AC-3
AC-4
+5V+5V
21
R6NU
2 1R5
NU
21
R8NU
32
1
Q4NU 3
2
1
Q5NU
32
1
Q6NU
+5V+5V
21
R24K7
2 1R1
4K7
21
R44K7
32
1
Q1BSS123 3
2
1
Q2BSS123
32
1
Q3BSS123
+12V
31
2LK4
32
1
Q10NU
2 1LK3
1 2C5
10uF
12C4
10uF
+5V +5V
21
R104K7
2 1R9
4K7
21
R124K7
32
1
Q7BSS123
32
1
Q8BSS123
32
1
Q9BSS123
TXRX
SET (VIDEO B)
VIDEO TALLYAUDIO TALLY
LOC.ACTIVEREM/LOC
SELECT AUDIO B
SNMP Interface
805264i3s3.sch2
1
3
SW2A
21
R174K7
21
R184K7
+5V+5V
21
LD5'red'
(LOCAL)
+5V
21
R19560R
AUDIO CONTROL
STANDBY (B)
Local
Remote5
4
6
SW2B
SeparateFollow
LK5 CLOSED SEPARATE AUDIO CONTROLLK6 CLOSED AUDIO FOLLOW VIDEO CONTROL
nVIDEO AnAUDIO A
VIDEO TALLY
CLOSE LK3 TO DISABLE MAGNETIC LATCHING FOR SINGLE LINE VIDEO CONTROL
21
LD3green
21
LD4yellow
21
R22560R
(MAIN)
+5V
(STANDBY)
21
R24560R
AUDIO TALLY
+12V
AUDIO TALLY
LK4 SETS DC OF VIDEO TALLY RELAY COMMON
21
LD6green'DC'
+5V
21
R29560R
13
2D7BAS16
13
2D8
BAS16
21
R264K7
+5V
nLOCAL
LK2 2-3 WILL INDICATE LOCAL CONTROL SELECTION AT SK5-3WHEN AUDIO FOLLOW VIDEO CONTROL IS SELECTED SETTINGDO NOT USE WHEN LK6 IS SET FOR SEPARATE AUDIO CONTROL
USING THE VIDEO B CONTROL LINE
OUT B
IN A
OUT A
IN B
2 1R23
560R
Note: 'NU' denotes component not used in the circuit, may be fitted on board.
Video Cross-talk <-50db @ 270 MHzVideo Cross-talk <-30db @ 1.5GHzAudio Cross-talk <-85db 10HZ - 20KHz
13
2D15
BAS16
12
C1100nF
21
R3680R
31
2
LK7
31
2
LK8
+5Va
32
1 4U5
G3VM-351G
12
C2NU
21
R7NU
31
2
LK9
NU
31
2
LK10
NU
+5Va
32
1 4U6
NU
21
LK6
21
LK5
12
C3100nF
21
R11680R
31
2
LK11
31
2
LK12
+5Va
32
1 4U7
G3VM-351G
54
6
SW1B
21
3
SW1A
653
K3B
7
810
K3C
1 3
2
D9 BAS162 1R25
2K2+5Va 3 1
2
LK2
2 1R30
4K7 32
1
Q11BSS123
32
1Q12
BSS123
2 1LK1
+5V
nLOCAL
MAIN (A)
CLOSE LK1 IF PULL-UP VOLTAGE REQUIRED FOR LOCAL TALLY.
1 2F6
RXE005
OR
+5V +5Va
2-3 LOW (ground) ACTIVATE1-2 HIGH (+5v) ACTIVATEInput control polarity set by links 7 -12
NB: Control circuit must source/sink 6mA
LK2 1-2 FOR SEPARATE AUDIO CONTROL
2 22-08-2008 EC
R1868
3 25-08-2008 EC
R1869
CONTROL
IN B
OUT A
IN A
OUT B
OUT B
IN A
OUT A
IN B
OUT B
IN A
OUT A
IN B
12L1R
3.3nH
12 L4R
3.3nH
12 L3R
3.3nH
12 L2R
3.3nH
1A1B2A2B3A3B4A4B5A
6A6B7A7B8A8B
10A10B
5B
11A11B12A12B13A13B14A
15A15B
17A17B18A18B
9A9B
20A20B
14B
21A21B22A22B23A
24B24A
25B26A
27A27B28A
23B
19A19B
30A30B
26B
31A31B32A32B
25A
16A16B
28B29A29B
J1
DIN644321
SK5
1
2
SK1
1
2
SK2
1
2
SK4
1
2
SK3
123 J3
1 2
3 4
5 6
P4
1
3
5
7
9
P3
RXTX
54321
AL1
54321
AL2
54321
AR2
54321
AR1
LEFT AUDIO
RIGHT AUDIO
321
SK6
VIDEOTALLY
Common contact
Contact CLOSED MAIN (A)Contact CLOSED STANDBY (B)
(OR) LOCAL TALLY (0.1 Volts)
VIDEO A (MAIN) *VIDEO B (STANDBY) *
REMOTE TALLY (4.5Volts)
AUDIO B (STANDBY) *
* CONTROL IS BY GND OR +5V AS SET BY LINKS 7-12
1
789
10
1314
1112
K1
G6Z-1PE
1
7 8910
1314
1112
K2
G6Z-1PE
121
K3AG5A-234P
IRT C
ommun
icatio
ns
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mmunica
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Title
SCALE
SIZE
SheetDRAWNCHECKEDENG. APP.Revision:
DO NOT COPY NORDISCLOSE TO ANY
THIRD PARTYWITHOUT WRITTEN
CONSENT
of2
IRT Electronics Pty. Ltd.
Drawing No.
COPYRIGHT
ARTARMON NSW AUSTRALIA 2064
A3
N.T.S. 3
AMS-4171
805264
Date: 3
29-Jun-2010
K.N.Power Supply
12 F1
4R721
D11
S1B
12
C12470uF
12 F2
4R721
D12
S1B
12 F3
4R7
21D13
S1B
12 F4
4R7
21D14
S1B
13
2
FL1
13
2
FL2
13
2
FL3
13
2
FL4
1 07-06-2007
AC-1
AC-2
AC-3
AC-4
O1
G2
G3
n.c.4 n.c. 5G 6G 7I 8U4
LM78L05ACM
+12V+5V 12
C161uF
12
C171uF
12
C131uF
12
C11470uF
12
C15100uF
12
C141uF
I 3
Adj
1
O2
O4
U3LM317S
21 R28
255R
21
R272K2
+12V12
C18100uF
2 22-08-2008 EC
R1868
3 25-08-2008 EC
R1869
IRT C
ommun
icatio
ns
www.irtco
mmunica
tions
.com
Title
SCALE
SIZE
SheetDRAWNCHECKEDENG. APP.Revision:
DO NOT COPY NORDISCLOSE TO ANY
THIRD PARTYWITHOUT WRITTEN
CONSENT
of3
IRT Electronics Pty. Ltd.
Drawing No.
COPYRIGHT
ARTARMON NSW AUSTRALIA 2064
A3
N.T.S. 3
AMS-4171
805264
Date: 3
29-Jun-2010
1
2
3
4
5
61J3
RX
TX13A
13B
SNMP interface
+5V
1
2
3
4
5
6
7
8
10
9
1J2
1
2
3
4
5
6
7
8
10
9
1J1
SMU-4000
ASSEMBLY 804857SNMP CPU Sub-Module
K.N.
1 07-06-2007
AUDIO TALLYPTB0
PTA0
SET (VIDEO B)
PTB1
PTB3PTB2PTB5
VIDEO TALLY
REM/LOC
PTB4
PTA3PTA2
PTA1
PTA4PTA5PTA6PTA7
PTB7PTB6
PAD4
LOC.ACTIVEnLOCAL CONTROL ACTIVE
nLOCAL CONTROL SELECTED
nINPUT "A" SELECTEDnINPUT "A" SELECTED
SELECT INPUT B
SELECT AUDIO BSELECT AUDIO B
12C6
100nF
2 22-08-2008 EC
R1868
3 25-08-2008 EC
R1869
IRT C
ommun
icatio
ns
www.irtco
mmunica
tions
.com