Avaya Definity SI, Руководство по обслуживанию, Страница: 2450 / 2968

Maintenance Object Repair Procedures
555-233-123 10-1664 Issue 4 May 2002
ISDN Interface Reference Point definitions:
Hardware Error Log Entries and Test to Clear
Values
LT Logical Terminal
V Primary Rate user/network (asymmetrical) trunk interface. The Avaya
DEFINITY Server is capable of acting as the user or as the network
side of this 1.544 - or 2.048-Mbps interface.
R Interface between Terminal Equipment and Network Termination
S Basic Rate network-side 4-wire line interface
S/T 4-wire Basic Rate connection to a Network Termination
1
.
1 Network Termination 2 (NT2), that terminates Layer 1 and higher layers. PBXs,
LANs, and terminal controllers typically provide NT2 functionality including
protocol handling and multiplexing for Layers 2 and 3.
T 4-wire Basic Rate interface to a Network Termination.
2
2 Network Termination 1 (NT1), that terminates Layer 1 and monitors
maintenance, performance, timing, power transfer, multiplexing, and multi-drop
termination with contention resolution.
TE Terminal Equipment
U Basic Rate network-side 2-wire line interface.
1 TN556B ISDN-BRI 4-Wire S/T-NT Line (A-law)
2 TN 2185 ISDN-BRI 4-Wire S Interface (Trunk Side)
3 TN2198 ISDN-BRI 2-Wire U Interface
4 TN2198 ISDN-BRI 2-Wire U Interface
5 TN 2185 ISDN-BRI 4-Wire S Interface (Trunk Side)
Table 10-610. TBRI-PT Error Log Entries
Error
Type
Aux
Data Associated Test
Alarm
Level
On/Off
Board Test to Clear Value
0
1
0 Any Any Any test Port UCSSPP sh r 1
1 (a) Level 1 Status Test
(#1242) MINOR OFF
129
2
257(b)
513 (c) 46222 XMIT FIFO
Overflow MINOR ON
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