Instruction manual

HARDWARE DESCRIPTION
●
An analog single-line voice terminal (2500 or 7100 series) or a 7300H series multiline
voice terminal (Z3A5 ADU required) can be connected to the ADU, allowing the voice
terminal and DTE to share a common wall jack and 4-pair cable run back to the SIP.
Note:
Neither off-premises nor out-of-building service can be provided with ADUs.
For additional information on ADUs, see Z3A Asynchronous Data Unit User Manual (555-401-
701).
ADU Connection Information
Detailed connection information is provided under the “Connectivity” heading later in this
Section.
RS-232C
CONNECTOR
INTERFACE
OPTIONAL
ORIGINATE/DISCONNECT
SWITCH
Figure 4-23.
Asynchronous Data Unit (ADU)
4-58