SX-200 General Information Guide
54
Revision A
50003510
Digital Line Card
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The Digital Line Card (DLC) is a low power card with 12 Digital Network Interface Circuits
(DNIC) per card. The Digital Line Card interfaces DNIC-based peripheral devices to the system
through its Digital Network Interface Circuits (DNIC); the DNIC is a proprietary integrated circuit.
DNIC devices include SUPERSET 4001, SUPERSET 4015 , SUPERSET 4025, SUPERSET
4125, SUPERSET 4150, SUPERSET 4090, SUPERSET 401+, SUPERSET 410, SUPERSET
420, SUPERSET 430 telephones, Programmable Key Modules, DATASETs,
SUPERCONSOLE 1000 Attendant Console, DMP Module, and SUPERSET 7000 Attendant
Consoles.
LS/GS Trunk Card
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The LS/GS Trunk card is a low power card that contains six loop start or ground start trunks
(jumper-selectable) and six message registration inputs. The card may be installed in any digital
peripheral slot. Facilities provided by the LS/GS Trunk Card include: Loop Start or Ground Start
selectable by jumper, M and MM signaling leads (refer to the feature, Meter Pulse Collection),
trunk activity indicated by LED (one per trunk), transient suppression on Tip, Ring, and signaling
leads, and an alarm LED.
LS/CLASS Trunk Card
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The LS/CLASSTrunk card interfaces eight trunk circuits to the system. LS is the acronym for
Loop Start and CLASS is the acronym for Custom Local Area Signaling Services (allows the
system to receive calling Line ID digits and CLASS name on incoming CLASS trunks). The
LS/CLASS Trunk card can be installed into slots one to eight in a SX-200 rack mount cabinet
or a SX-200 ML (FD) cabinet. The card is dependant on LIGHTWARE 19 Release 2 or greater
software. The LS/CLASS Trunk card provides loop start operation, forward/reverse current
detectors (polarity reversal, answer supervision), alarms and trunk activity indicated by an LED
(a single LED for any circuit in use), CLASS signal reception, and transient suppression on Tip
and Ring leads.
Direct Inward Dial (DID) Trunk Card
!
The DID trunk card is a high power card that contains six 1-way Direct Inward Dial circuits.
The DID trunk allows incoming trunk calls to dial directly to an extension within the system
without attendant intervention.
Off-Premise (OPS) Line Card
•
The OPS line card is a low power card that interfaces the system to extensions which are part
of the system, but are located in a different building from the PBX. It contains additional
protection circuitry to protect the system from extraneous high voltages or induced currents
that may appear on the line. Each OPS card has six circuits.
COV Card
!
The COV card is a high power card that is required to interface to certain voicemail applications.
Note:
The card is a high power card if a console is attached to a SX-200 LIGHT cabinet.
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