DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-411CO-DS1 (DS1 CO Trunk)
9
CO-DS1 (DS1 CO Trunk)
NOTE:
Many trunk problems are caused by incorrect setting s of parameters on the
trunk group administra tion form. Settings must be comp atible with the local
environment and with parameter setting s on the far-end. Refer to

DEFINITY

Enterprise Communications Server Release 5.4 Administrationa nd Feature

Description
, for information on how to administer trunks. The App lication
Notes section of that book shows the c orrect settings for administrab le
timers and other parameters on a c ountry-by-country ba sis.
A DS1 CO (central office) trunk provide s a link for digitized voic e or data
communications between the s ystem and a central office switc h. There are two
types of DS1 interfaces:
■24 DS0 channels on a 1.544 Mbps link
■31 DS0 channels + 1 framing c hannel on a 2.048 Mbps link
NOTE:
32-channel mode is supp orted only on TN464 circuit p acks and on G3r V2
systems.
MO Name (in
Alarm Log) Alarm
Level Initial Command to Run1
1. UU is the universal cabine t number (1 for PPN, 2 -44 for EPNs). C is the carrier
designation (A, B, C, D, or E). SS is the number of the slot in which the circuit pack
resides (01 to 21). pp is the two digit port number (01, 02, ...).
Full Name of
MO
CO-DS1 MAJOR2
2. A Major alarm on a trunk indic ates that alarms on these trunks are not d owngraded b y
the set options command and that at least 75 percent of the trunks in this trunk group
are alarmed. For more information on the set options command, see Chapter 8,
‘‘Maintenance Commands’’.
test trunk
group# member#
lDS1 CO Trunk
CO-DS1 MINOR test trunk
group# member#
lDS1 CO Trunk
CO-DS1 WARNING test trunk
group# member#
DS1 CO Trunk