DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-1172UDS1-BD (UDS1 Interface Circuit Pack)
3
Circuit Pack Administration and Options
The DS1 configuration for each circ uit pack is administered on the DS1 Circuit
Pack form.
Bit Rate
is set to 1.544 Mbps for 24-c hannel systems, and 2.048
Mbps for 32-channel system s.
Country Protocol
is used to drive layer 3 protocol
decisions based on PRI specifications spec ific to a given c ountry (not those
related to specific features). This Country Protocol is independent of the
Country
parameter administered on the c ountry-options system-p arameters form.
Different UDS1 circuit packs may b e administered with different Countr y
Protocols, allowing the switch to ac t as a gateway between two inc ompatible
ISDN-PRI implementations (for example, between two different c ountries). US
systems use country protocol 1.
Near-End CSU Type
is set to
other
for no CSU
installed or for an external CSU such as an Luc ent ESF T1 CSU, or
integrated
for
the 120A1 CSU Module or the 401A T1 Sync Spliltter. Answering
integrated
will
cause additional field s to be disp layed for administering the Enhanced
Integrated CSU Module.
E1 Sync -Spl itter ?
is set to
y
if a 402A or 403A E1 Sync
splitter is used to provid e timing to an ATM switch. In addition to the ab ove there
are numerous other fields defining s uch parameters as framing mo des, line
coding companding mode and so on. For details, see
DEFINITY
Communications System Generic 3 V2 Implementation,
555-230-653, and
DEFINITY Communications System Generic 2.2 and Generic 3 V2
DS1/CEPT/ISDN-PRI Reference
, 555-025-107.
Two option jumpers located on the side o f the TN464C/D circuit pack must b e
installed correctly. The figures on the following page shows how to co nfigure the
circuit pack for 24-channel or 32-channel DS1, and for 75*W (c oaxial) or 120*W
trunk connections. The channel selec tion must match the paramet ers
administered on the corresp onding DS1 Circuit Pack Form. (US applic ations use
24 Channels.)