PairGain 150-1143-42, Руководство пользователя

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150-451-142-04, Revision 04 Installation
HDU-451 List 4B October 8, 1998 15
LOOPBACKS
SMJK SmartJack Loopback Loopback at HRU-412 towards network initiated
by 2 in 5 in-band loopback code or out-of-band
ESF data link code. See
Figure 4 on page 10 .
NREM Network Remote
Loopback Loopback at HRU-412 (remote) towards
network initiated from a family of special
loopbacks (SPLP), HRU-412 front panel
push-button or maintenance terminal. See
Figure 12 on page 31 .
NLOC Network Local
Loopback Loopback at HLU (local) towards network
initiated from a family of special loopbacks
(SPLP) or by depressing both the MODE and
SEL HLU-231 front panel push-buttons or
maintenance terminal. See
Figure 4 on page 10 .
NDU1 Network Doubler 1
Loopback Loopback at Doubler 1 towards network
initiated from CO (network) by a family of
special loopbacks (SPLP) or from maintenance
terminal or by depressing both the MODE and
SEL HLU front panel push-buttons. See
Figure 4
on page 10 and “Loopback Design Description”
on page 10 .
NDU2 Network Doubler 2
Loopback Loopback at Doubler 2 towards network
initiated from CO (network) by a family of
special loopbacks (SPLP) or from maintenance
terminal or by depressing both the MODE and
SEL HLU front panel push-buttons. See
Figure 4
on page 10 and “Loopback Design Description”
on page 10 .
CLOC Customer Local
Loopback Loopback at HRU-412 (local) towards CI
initiated from CPE (customer) by a family of
special loopbacks (SPLP) or from maintenance
terminal or by depressing both the MODE and
SEL HLU front panel push-buttons. See
Figure 4
on page 10 .
Table 5. HLU-451 Status Menu Messages (Cont.)
Message Full Name Description