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Install Station Message Detail Recording (SMDR)/Call
Detail Recording Unit (CDRU) Interface
Issue 1 September 1995
9-63
Interface Cabling to Station Message Detail
Recording (SMDR) Output Device
Figure 9-33 shows the cabling required to connect the TELESEER unit, printer,
or customer-provided data terminal equipment (DTE) for an AC-powered single-
carrier cabinet. The M25B/RS-232 cable connects to the PI connector on the
TELESEER unit.
!
CAUTION:
All peripherals connected to a DC-powered switch through the
asynchronous Electronic Industries Association (EIA) RS-232 data terminal
equipment interface on the Processor Port Network (PPN) A or B carrier or
the Expansion Port Network (EPN) maintenance circuit pack require an
Electronic Industries Association (EIA) 116A ground isolator. Plug the 116A
ground isolator into the RS-232 interface connector (labelled DTE on the
back of cabinet). The cable from the peripheral equipment is then plugged
into the opto-isolator. Figure 9-33 shows the connections for a DC-powered
single-carrier cabinet.
The apparatus code for the isolator is 116A ground isolator and the AT&T
Comcode is 106005242.