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Screen Reference
DS1 Circuit Pack
Administrator’s Guide for Avaya Communication Manager
795
November 2003
Near-end CSU Type
This field appears only when the DS1 circuit pack is a TN767D or TN464E or later suffix model, the
Bit
Rate
field is 1.544 and the
Country Protocol
field is 1 (U.S.). This field does not display for all circuit
packs.
Slip Detection
Slips — synchronization errors — slow digital transmissions and can result in data loss. The server
maintains a slip-count record for each DS1 interface to detect errors and evaluate their severity (the type
of alarm). If as many as 50 percent of those spans administered for slip detection are experiencing slips
(with respect to the primary), then a decision is made to switch to the secondary.
CAUTION:
Always enter y for DS1 circuit packs that serve as primary or secondary synchronization
references.
Valid entries
Usage
other
Enter other if no channel service unit is attached to the DS1 facility
or if the CSU is an external unit. No options are available on page 2
for administering an external CSU.
integrated
Enter integrated if a 120A CSU module is attached to the DS1
board. This integrated channel service unit (ICSU) can accept
software-administrable option downlinks (that is, it can respond to
test codes from technician’s equipment and report its status). When
you enter integrated, fields for administering options on the ICSU
appear on page 2 of the DS1 Circuit Pack screen.
Valid entries
Usage
y
Enter y to allow maintenance software to measure the slip-rate of
this circuit pack and determine whether it’s excessive. Typically,
enter y for DS1 spans used for data applications and for spans used
as synchronization references. This excludes all T1-spans
connecting channel banks, unless the channel bank is externally
timed. This entry enables switching between the primary and
secondary synchronization references and an internal high-accuracy
clock.
n
Enter n for DMI-BOS links or when testing is not required.
Normally, enter n for DS1 spans that are used exclusively for voice
and that do not serve as the primary or secondary synchronization
source.
Содержание Communication Manager
Страница 320: ...Setting Up Telecommuting Training Users 320 Administrator s Guide for Avaya Communication Manager November 2003...
Страница 416: ...Managing Group Communications Observing Calls 416 Administrator s Guide for Avaya Communication Manager November 2003...
Страница 502: ...Administering Media Servers SNMP Agents 502 Administrator s Guide for Avaya Communication Manager November 2003...
Страница 602: ...Phone Reference Internet Protocol IP Softphones 602 Administrator s Guide for Avaya Communication Manager November 2003...
Страница 1338: ...Screen Reference Vector Directory Number 1338 Administrator s Guide for Avaya Communication Manager November 2003...
Страница 1832: ...Glossary and Abbreviations Z 1832 Administrator s Guide for Avaya Communication Manager November 2003...
Страница 1854: ...Index X 1854 Administrator s Guide for Avaya Communication Manager November 2003...