COMSPHERE 3550 Series Data Service Units
D-2 December 1996 3550-A2-GB20-20
Table D-1
Model 3550 – Digital (DDS) Network 8-Pin Cable Connector Pin Assignments
Pin Circuit Function
1 R1 Transmit
data to local loop
2 T1 Transmit data to local loop
7 T Received data from local loop
8 R Received data from local loop
Table D-2
Model 3550 – Dial (Analog) Network 6-Pin Cable Connector Pin Assignments
Pin Circuit Function
3 T Tip – V.32 DBM
4 R Ring – V.32 DBM
3000HUBBING DEVICE
MODEL #3000-F3-300
8-Pin
Modular
Jacks
6 Inches
Overall
4-Pin
Modular
Plug 496-13775-03
8
1
Pin
Numbers
8
1
CC IN/DC OUT CC OUT/DC IN
CC IN/DC OUT
Hubbing Device
CC OUT/DC IN
Figure D-2. 3600 Hubbing Device (3600-F3-300)