Nortel T1/SMDI Configuration Manual page 160

CallPilot T1/SMDI interfaces
T1 cable pinouts
Pin Number
1
2
3
4
5
6
7
8
RJ-45 Metallic Shield
CallPilot T1 encoding requirements
A T1 signal uses bipolar electrical code format. CallPilot uses the B8ZS
bipolar code format for T1 signals.
Alternate mark inversion format
0
160
1 0 0
Lead designation
Receive ring
Receive tip
No connect
Transmit ring
Transmit tip
No connect
No connect
No connect
To cable shield drain wire
1 0
g250079
Standard 1.13
CallPilot