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Asynchronous Data Unit (ADU)
Jacks
Originate/Disconnect
The Z3A1/2/4 are equipped with a jack used to connect the optional Originate/Disconnect
switch.
Telephone
The Z3A1/2/4 are equipped with modular jack to connect the optional analog telephone.
Data and RS-232 connections.
Refer to the following table for the different data and RS-232 connections.
ADU MODEL CONNECTOR TO RS-232 DATA CONNECTOR
25-pin plug on
Z3A1
3-foot cable
Modular
Z3A2 25-pin plug (no cable) Modular
Z3A3 110-type patch cord 110-type patch cord
25-pin receptacle on
Z3A4
3-foot cable
Modular
Power
Under certain conditions the ADU is powered by the attached RS-232 equipment. When the
power provided by the RS-232 is inadequate (±7 volts are required on pins 20 and 2), an external
power transformer, adapter, and patch cord are required.
Z3A Data Module Price Element Codes (PECs)
The Z3A Data Module and optional components can be ordered with the following PECs:
Z3A1 Asynchronous Data Module—2169-001
Z3A2 Asynchronous Data Module—2169-002
Z3A3 Asynchronous Data Module—2169-003
Z3A4 Asynchronous Data Module—2169-004
Originate/Disconnect Switch—21692
ADM Mounting Trough—21693
5-88