PairGain HLU-431, Быстрое руководство по установке

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Testing 350-431-116-01, Revision 01
14 January 8, 1999 HLU-431 List 1F
L
OOPBACKS
The HLU- 431 List 1F loopback messages are listed in the following tables.
A block diagram showing the GNLB locations and their activation codes are
shown on page 13.
Table 5. Status Menu Loopback Messages (with and without Doublers)
Message Full Name Description
SMJK SmartJack Loopback Loopback at HRU (remote) toward the
Channel Bank Assembly (CBA) initiated by
either the (2-in-5) in-band loopback code or
the out-of-band ESF data link code.
NREM Network Remote Loopback Loopback at HRU (remote) toward the CBA
initiated by upstream in-band codes or from
the maintenance terminal.
NLOC Network Local Loopback Loopback at HLU (local) toward the CBA
initiated by upstream in-band codes or from
the maintenance terminal.
CLOC Customer Local Loopback Loopback at HRU (local) toward CI initiated
from CPE (customer) by in-band codes or
from the maintenance terminal.
CREM Customer Remote Loopback Loopback at HLU (remote) toward customer
initiated from CPE (customer) by in-band
codes or from the maintenance terminal.
ARM Armed The HiGain system detected the IR loopback
(2-in-5) arming code.
TLOS Transmit Loss of Signal
(Loopback) HRU is in a logic loopback state caused by a
loss of its T1 input from the CI, if enabled at
the HRU by its TLOS switch option.
Table 6. Status Menu Loopback Messages: (Doublers Only)
Message Full Name Description
NDU1 Network Doubler 1
Loopback The loopback at doubler 1 toward the CBA
initiated by in-band codes, or the maintenance
terminal.
CDU1 Customer Doubler 1
Loopback The loopback at doubler 1 toward CI initiated by
in-band codes or the maintenance terminal.