8/3/2019 Nortel Combining

1/8

Nortel Cabinet and Combining

Northeast UMTS Group

Mazher Abdul Qayyum

Sr. RF Engineer

8/3/2019 Nortel Combining

2/8

S12000 Cabinet Closed

S12000 Cabinet Open

Power Amplifiers

Combiners and Duplexers

Radios

Max 12 Radios

8/3/2019 Nortel Combining

3/8

S18000 Cabinet Open

Radio Module

(Radios and PA)

Combiners

Max 18 Radios

8/3/2019 Nortel Combining

4/8

HEPA Standard PA

8/3/2019 Nortel Combining

5/8

Duplexer

(TX & RX)

8/3/2019 Nortel Combining

6/8

TX Filter

(TX Only)

Bias Ts

For TMA.

H2D Combiner in

Uncombined Mode.

8/3/2019 Nortel Combining

7/8

H2D Combiner

in Uncombined

Mode

H2D Combiner

in Combined

Mode.

Duplexer or Standard

Combiner

Notice the Jumper for

CombiningNotice the Jumper in

Uncombined state

8/3/2019 Nortel Combining

8/8

H4D Combiner in

Combined ModeCombiner

O/P

I/P from PA

Notice Jumpers for

Combining