Maintenance Object Repair Procedure
555-233-142
8-868 Issue 1 May 2002
PDATA-PT (Packet Data Line Port)
System Ports and the PDATA Circuit Pack
The Packet Data Line Circuit (PDATA TN553) port board supports the connection
of asynchronous EIA RS-232C endpoints to the packet bus. Each PDATA circuit
pack has twelve (12) ports. PDATA ports are used solely to support the System
Ports feature. System ports provide a means for the SPE to communicate with
data applications via the TDM bus, something the SPE cannot otherwise do, since
it has no direct circuit-switched access to the TDM bus. Each system port
consists of a PDATA circuit pack port and a Data Line (TN726B) circuit pack port
which are cross-connected at the wall field. The PDATA side of the pair provides
an interface to the packet bus for Mode 3 packet data coming from the SPE via
the Packet Interface circuit pack. The PDATA converts the Mode 3 packet data
into EIA data which the Data Line circuit pack then converts to Mode 2 data and
places on the TDM bus. The data stream can then be directed to any external
application having an EIA interface by routing it through another Data Line port
(See the figure below.) System ports allow the following applications to
communicate with the SPE:
■ Save/restore of Announcement circuit pack’s recorded announcements
■ Call Detail Recording (CDR)
■ Journal printer for the Property Management System (PMS)
■ Wakeup Log printer for the Property Management System (PMS)
■ System printer
■ Data terminals
■ Remote G3-MT terminals
Although the paired PDATA and Data Line circuit packs used for system ports
may be located independently and in any port network, they are usually placed in
adjacent slots in the PPN.
MO’s Name (in
Alarm Log)
Alarm
Level Initial Command to Run
1
1. UU is the universal cabinet number (1–64). C is the carrier designation (A, B, C, or D). SS is the
number of the slot where the circuit pack resides (01–10). pp is the 2-digit port number (01, 02,...).
Full Name of MO
PDATA-PT MINOR test port UUCSSpp PDATA Port
Maintenance
PDATA-PT WARNING release port UUCSSpp PDATA Port
Maintenance
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