AT&T 585-300-903 manual Typical Rack-Mounted Modem Pool Using D-Lead Control

5-2DCP Mode 2 Networks — Modem Pooling

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GENERAL INFORMATION

DCP Mode 2 networking uses the DCP interface between the AUDIX system and the switch. Analog or voice-grade data facilities are used between customer locations. When the switch is a System 85 or DEFINITY Generic 2, the AUDIX system can use up to six ports at any given time. When the switch is a System 75, Generic 1, or Generic 3, up to four ports may be used at any given time.

Figure 5-1,Typical Rack-Mounted Modem Pool Using D-Lead Control, shows a modem pool where a D- Lead is used between the modems and data modules. This arrangement is usually shared by two or more switch applications. The customer can use this arrangement for AUDIX systems so long as the equipment and their option settings are compatible. (Compatible equipment is provided later in this chapter. Compatible option settings are provided in Chapter 11, DCP Mode 2 Installation and Administration.) The customer could also use what is called stand-alone modem pooling. See Figure 5-2,Typical Stand-Alone Modem Pool (No D-Lead Control).

2	2	2	2	2	2	2	2
2	2	2	2	2	2	2	2
9	9	9	9	9	9	9	9
6	6	6	6	6	6	6	6
A	A	A	A	A	A	A		A

7	7	7	7	7	7	7	7
4	4	4	4	4	4	4	4
0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0
A	A	A	A	A	A	A	A

2	2	2	2	2	2	2	2
2	2	2	2	2	2	2	2
9	9	9	9	9	9	9	9
6	6	6	6	6	6	6	6
A	A	A	A	A	A	A		A

7	7	7	7	7	7	7	7
4	4	4	4	4	4	4	4
0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0
A	A	A	A	A	A	A	A

105A MOUNTING WITH 8 MODEMS

77A MOUNTING WITH 8 DATA SETS

105A MOUNTING WITH 8 MODEMS

77A MOUNTING WITH 8 DATA SETS

NOTE: Use 46A2 mounting if MTDMs are used instead of 7400As.

Figure 5-1.Typical Rack-Mounted Modem Pool Using D-Lead Control