Ds3 Interface Card Specifications - Nortel Versalar 15000 Installing And Maintaining

DS3 Interface Card Specifications

The DS3 port adapter's T3 port is designed to receive and transmit at the DSX-3
level while driving and receiving from a 75-ohm coaxial cable (ATT 728A type
coax). The T3 port connects directly to any equipment with DSX-3 level BNC
connectors.
Table A-5.
Parameter
Line rate
Line code
Impedance
Pulse shape
Input signal
Output signal
308684-B Rev 00
Table A-5 lists the specifications for the DS3 interface.
Specifications for the DS3 Interface
Specification
44.736 Mb/s (20 ppm)
B3ZS (bipolar with three-zero substitution)
75 ohms
ANSI T1.102, pulse amplitude between 0.36 and 0.85 V
peak
DSX-3 (9.7 dB to -11.8 dB)
DSX-3, able to drive 450 ft (135 m) of 75-ohm coaxial cable
(728 A or equivalent) and meet pulse shape template at the
line side
Technical Specifications
A-7