AT&T Release 2.0 manual Modem Pools, Data Module Settings, Data Module Kbps Settings

Connecting Data Equipment

Table 6-2. Data Module Settings

		Data Module				56 Kbps			64 Kbps
		Settings
	Auto-dial				off				off
	Busy out
					off			off
	Datarest
					on			off
D T R
				follow				follow
Duplex				full			full
Mode				cs			c s
Speed			56,000				64,000

CSU DIP Switch Settings. If the customer’s system is running at 56 kbps, set the CSU line coding DIP switch to AMI. See Chapter 4 for details.

Modem Pools

A call between an analog data station and a digital data station is possible only if the system includes a modem pool to convert the signals back and forth between analog and digital. A modem pool consists of one or more modem-and-data module pairs; two pairs are shown in Figure 6-8.

Modem pools are set up as analog-to-digital or digital-to-analog:

■Digital-to-Analog:This type of modem pool is used when a call to an analog data station is originated from a digital station.

■Analog-to-Digital:This type of modem pool is used when a call to a digital data station is originated from an analog data station.

Modem Pools 6-23