AT&T 585-300-903 manual SN270B

			DCP Mode 2 Installation and Administration	11-13
_______________________________________________________________________________________
_
H600-331		AUDIX
GROUP 1
	ACC(E)
CROSS-
CONNECT
SN270B
		SN261B	SN255C	T/R
			CO
			DID
			TIE
SN270B		SYSTEM 85 *
			SN243
DCP	BRIDGING
25-PAIR
	ADAPTER
		D-LEAD
	J1
		J2
ADAPTER HARNESS	P1
			T/R
25-PAIR
			DATA MODE
D8W-87			CONTROL
(8 CORDS)
LINE	M25B (RS-232)		MODEM
7400A
LINE	M25B (RS-232)		MODEM
7400A
77A MOUNTING			105A MOUNTING
			*System 75 boards differ from those shown

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.