AT&T AUDIX Networking 585-300-903 User Manual

Page 131

DCP Mode 2 Installation and Administration

11-13

______________________________________________________________________________________

LINE

SN243

7400A

H600-331

GROUP 1

CROSS-

CONNECT

DCP

25-PAIR

D-LEAD

DATA MODE

CONTROL

CO
DID
TIE

T/R

BRIDGING

ADAPTER

MODEM

M25B (RS-232)

D8W-87

(8 CORDS)

105A MOUNTING

77A MOUNTING

ADAPTER HARNESS

25-PAIR

SN255C

SN261B

SYSTEM 85 *

*System 75 boards differ from those shown

SN270B

ACC(E)

AUDIX

Figure 11-6. AUDIX Networking (Modem Pooling) with 7400A DSUs

18. From the back of the rack, connect the appropriate M25B cable to its RS-232 port on the back of each

data module. Tighten the connector screws to hold the cables securely in place.

19. Drape each interface cable through its plastic twist lock and twist the top ends of the lock to secure

each cable. Make sure each modem is interconnected through the RS-232 cable to the 7400A in the
corresponding rack position.

20. To test the remote connection and the administration of the system, run the self-test as described in

Section 2 of the 7400A Data Module User’s manual.