Avaya 555-233-116 manual Setting 7400B data module hardware options, Data module

Data modules and asynchronous data units

5.Use the DCE position to connect to DTE equipment. Use the DTE position to connect to DCE equipment. To change the mode, remove the board by grasping it and pulling it gently upward. Flip the board around, left to right, and reinsert it in the socket so that the correct operating mode, DCE or DTE, appears in the upper lefthand corner.

6.Snap the top cover onto the unit.

Setting 7400B data module hardware options

You configure the 7400B data module using DIP switches on the circuit card inside the case. Figure 12 shows the front and rear of a 7400B data module.

DATA	CHECK
METERING	SPEED
POWER	AA CD RD SD TR O H
	DATA
TEST

7400B Data Mod ule

PORT 2

PHO NE LINE

POWER PORT 1

7400b RBP 032596

Figure 12. 7400B data module

To configure the 7400B data module, proceed as follows.

! WARNING:

Electrostatic discharge can severely damage sensitive electronic circuits. Before handling any electronic hardware, be sure to wear a grounding wrist strap or other static-dissipating device. Do not touch exposed circuitry or semiconductor chips.

1.If you are not attaching a telephone to the data module, activating data metering, or enabling busyout on the local loop, you can use the factory default settings. The 7400B data module is already configured for your use. Stop now.

52 Issue 4 October 2002 555-233-116