OptiX 2500+(Metro3000) TM

Issue 3.0 Nov

Mechanical Structure

5.1 Overview

OptiX 2500+(Metro3000) mechanical structure includes: Racks, subracfan boxes, and power supply frames. A Rack can hold various typeand several circuit boards can be inserted into a subrack accordingconfiguration to constitute various types of equipment.

ember 2001 5-1

ks, circuit boards, s of subracks, to some

Mechanical Structure OptiX 2500+(Metro3000) TM

5-2 Issue 3.0 November 2001

5.2 Rack Structure

OptiX 2500+(Metro3000) uses standard ETSI Racks that are in compliance with the ETS 300-119-3 standards.

Rack size:

2000mm (high) × 600mm (wide) × 600mm (deep) (92kg)

2200mm (high) × 600mm (wide) × 600mm (deep) (101kg)

2600mm (high) × 600mm (wide) × 600mm (deep) (112.3kg)

A Rack consists of a skeleton, doors, DDF, the top cover, and side boards, as shown in Figure 5-1. The skeleton supports and holds all components. On the skeleton bridges on both sides of the Racks are distributed equally the installation screw holes in an interval of 25mm. All types of subracks are fixed by such screw holes, though their places can be adjusted up or down inside the Rack. Besides, on both sides of the Rack, there are cable supports used to lay cables. DDF is used to fix the E1/T1 cables inside of the Rack and the subscriber side cables. Both the front door and the back door can be opened. The distance between the Rack and the wall shall be at least 600mm.

Mechanical Structure OptiX 2500+(Metro3000) TM

Issue 3.0 November 2001 5-3

1. Front door, 2. Cover plate of power box, 3. Side panel, 4. Back door, 5. Vertical shaft, 6. Slide rail

Figure 5-1 OptiX 2500+(Metro3000) Rack structure

Mechanical Structure OptiX 2500+(Metro3000) TM

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5.3 Subrack Structure

A OptiX 2500+(Metro3000) subrack has the size of 646mm (height) ×530mm (width) × 542mm (depth) , the net weight of each subrack is 25kg. The subrack consisting of 3 parts. The front shelf is used to accommodate XCS, S16, SCC, etc. The back shelf is the cable connecting area, accommodating E75B, E75S, LPSW, etc. In addition, the power supply and the serial ports are introduced from here. Optical fibers are put in the wiring area. The subrack structure is as shown in Figure 5-2.

Figure 5-2 (a) OptiX 2500+(Metro3000) subrack structure (front)

Mechanical Structure OptiX 2500+(Metro3000) TM

Issue 3.0 November 2001 5-5

Figure 5-2 (b) OptiX 2500+(Metro3000) subrack structure (back)