Nortel DMS-100 Series Maintenance Manual page 26

1-10 Maintenance overview
A complete LEN for an RLCM line card consists of five units of
information. Example LENs appear in the following table. This example
illustrates LENs for line cards in a normal office. The first two LENs are for
RLCM-supported lines.
Example LENs for line cards
Site
HOST
REM1
REM2
Line cards are available in several types so the RLCM can support different
types of analog or digital telephone equipment. The RLCM supports the
following line cards:
297–8351–550 Standard 04.01 August 1999
Frame
01
00
00
Standard line card type A (NT6X17AA, AB, AC, AD) or plain old
telephone service (POTS) card. The type A card supports single-party,
two-party, and private branch exchange (PBX) analog telephone sets.
The analog telephone sets can be type 500 or 2500. The type A card
supports loop start, superimposed ringing, and frequency selective
ringing with bridged ringers. The RLCM also supports cutover control
circuit. Refer to line card type B, coin.
Note: The position for LSG 0 LC-00 is assigned to a type A line circuit
and used for analog ringing tests. Circuit LSG 0 LC-00 is not available
for assignment to a subscriber line.
Line card type B, coin, (NT6X18AA, AB, BA). Provides the features of
type A, and multiparty lines. Supports coded ringing, PBX, ground start,
hotel/motel, and analog pay telephone sets that require coin control.
When the suffix of the NT6X18 card is -AA or -AB, and the
identification of the line is ground start (GND=Y in table LNINV), run
the diagnostics again. Run the diagnostics again if the initial diagnostics
fail. This action is possible through the addition of the Service order
(Servord) option NPGD, Negate Partial Ground Start Diagnostics. This
option allows the line to be tested against a smaller subset of ground start
diagnostics. When option NPGD is set in table LENLINES, tests do not
occur on loop detector, reversal relay, and ground start relay tests.
LCM LSG
0 14
0 07
0 18
LC
6
30
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