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Cable Diagrams Passport 4400 Hardware Installation Manual
A-19
Figure A-18. 120 ohm Crossover Cable
Figure A-19. Cable NTMV09AA - Modular Crossover Cable
Tw is t ed
Pair
Twi s ted
Pair
To E 1
Voice Module
To PBX
or PSTN
Tip 1 (T1) 1 3 Tip (T)
Ring 1 (R1) 6 11 Ring (R)
Tip (T) 3 1 Tip 1 (T1)
Ring (R) 8 9 Ring 1 (
R
1)
DB-15 Connector
(Male)
DB-9 Connector
(Male)
Tip (T)
Ring (R) 1 4 Ring 1 (R1)
Tip (T) 2 5 Tip 1 (T1)
Ring 1 (R1) 4 1 Ring (R)
Tip 1 (T1) 5 2 Tip (T)
To T1
Voice Module
To T1 Interface
RJ-48C
(Male)
RJ-48C
(Male)