Avaya 555-233-116 3 , 4

Contents
555-233-1168Issue 4 October 2002
Wire the 1146 power distribution unit 39
Replacing the batteries 40
Storing the batteries in inactive units 40
Repairing short circuits and resetting red LEDs 40
■1151A and 1151A2 power supplies 40
Desk mounting 42
Wall mounting 42
Standards compliance 42
3 Extenders for 2-wire DCP endpoints 43
■2-wire DCP endpoints 43
■DCP extender, stand alone 45
■DCP extender, rack mount 46
4 Data modules and asynchronous data units 47
■Understanding RS-232 communications 48
■Installation procedure 4 9
■Obtain required equipment 5 0
■Set hardware options 50
Setting 7400A data module hardware options 50
Setting 7400B data module hardware options 52
■Connect data modules 54
Connecting a single data module 55
Connecting multiple data modules to the system 56
■Administer the data modules 95
■Asynchronous data units (ADU) 98