AT&T 555-230-894 manual

Install Station Message Detail Recording (SMDR)/Call

Detail Recording Unit (CDRU) Interface

Interface Cabling to Station Message Detail

Recording (SMDR) Output Device

Figure 9-33shows 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 9-33shows 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.

Issue 1 September 1995 9-63