DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page10-1025PE-BCHL (PRI Endpoint Port)
10
PE-BCHL (PRI Endpoint Port)
A PRI Endpoint provides ISDN-PRI (Primary Rate Interface) connections for
customers with application equipment or terminal adapters that terminate
ISDN-PRI. The equipment or terminal adapters are connected to the switch via
the UDS1 interface circuit pack. PRI Endpoint Port (PE-BCHL) maintenance
provides a strategy to maintain PRI Endpoint Port hardware circuitry on the UDS1
circuit pack. The maintenance strategy involves logging PRI E ndpoint Port
hardware errors, running tests for port initialization, periodic and scheduled
maintenance, system technician-demanded tests, and alarm escalation and
resolution.

Wideband Switching

The Wideband Switching capability supports end-to-end connectivity between
customer endpoints at data rates from 128 to 1536 kbps over T1 facilities and to
1984 kbps over E1 faciliti es. DEFINITY switching ca pabilities are extended t o
support wideband calls comprised of multiple DS0s that are switched end-to-end
as a single entity.
The Wideband Switching capability is designed for ISDN application equipment
(for example, ISDN video codecs), but it retains provisions for non-ISDN
application equipment by using PRI terminal adapters. In the same sense that a
DEFINITY data module acts as a DCP or BRI terminal adapter between endpoint
data (for example, V.35) and dialing (for example, RS-366) interfaces and a DCP
interface, a PRI terminal adapter acts as a wideband terminal adapter between
endpoint data and dialing interfaces and DEFINITY’s line-side ISDN PRI
interface.
The Wideband Switching Capability introduces PRI Endpoints on DEFINITY
line-side interfaces. A PRI Endpoint consists of one or more contiguous
B-channels on a line-side T1 or E1 ISDN PRI facility, and it has an extension
number. Endpoints initiate and receive calls using ISDN SETUP messages that
indicate the data rate and specific B-channels to be used, and they
communicate all other call status information via standard ISDN messages. Any
1. For additional repair information, see also UDS1-BD (UDS1 Interface Circuit Pack)
maintenance documentation and ‘‘Troubleshooting PRI Endpoint Problems’’ in Chapter
5.
MO Name (in
Alarm Log) Alarm Level Initial Command to Run Full Name of MO
PE-BCHL1MINOR test port PCSSpp l PRI Endpoint Port
PE-BCHL WARNING test port PCSSpp sh PRI Endpoint Port