Nortel Passport 4400 Series Hardware Installation Manual page 133

Cable Diagram Pin Assignments
Figure A-14. Cable Model No. NTML79AA -- Modular Straight Cable
RJ48
(Male)
Ring (R) 1
Tip (T) 2
Ring 1 (R1) 4
Tip 1 (T1) 5
To T1
Voice Module
Passport 4400 Hardware Installation Manual
RJ48
(Male)
1 Ring 1 (R1)
2 Tip 1 (T1)
4 Ring (R)
5 Tip (T)
To DS-1
T1 Interface
A-17