Mitel SX-200 Practices page 43

Q II
Hardware Overview
Circuits (DNIC). Each DNIC communicates via a tip-ring pair to a device which also
communicates via a DNIC; the DNIC is a proprietary integrated circuit. The card has
12 circuits, and is a low power card that can plug into any digital peripheral slot. If a
SUPERCONSOLElOOOAttendant Console is connected to a DLC, that DLC must be
installed in a high power slot.
LS/GS Trunk Card.
The LS/GS Trunk Card contains six loop start or ground start trunks
(jumper-selectable) and six message registration inputs. This is a low power card that
may be installed in any digital peripheral slot.
Control Over Voice (COV) Line Card.
The COV Line Card interfaces a
SUPERSET telephone or a SUPERSET telephone to the PABX. Each COV card
connects six SUPERSETtelephones to the PABX. This is a high power card which can
only plug into an upper digital peripheral slot.
Direct Inward Dial (DID) Trunk Card.
The DID trunk card contains six l-way Direct
Inward Dial circuits. The DID trunk allows incoming trunk calls to dial directly to an
extension within the PABX without Attendant intervention. It plugs into an upper (high
power) slot of any digital Bay.
Off-Premise (OPS) Line Card.
The OPS line card interfaces the PABX to extensions
which are part of the system, but are located in a different building from the PABX. It
contains additional protection circuitry to protect the PABX from extraneous high
voltages or induced currents that may appear on the line. Each OPS card has six
circuits which each connect to an extension. The OPS line card plugs into an upper
(high power) slot of any digital Bay.
Ti Trunk Card.
The Tl Trunk
Card
provides an interface to one 24-channel (D4
format) Tl trunk. It is a high power card; because of signal cable restrictions it must be
positioned in slot 6 (slot 4 of COMBO Bay 2). Tl trunks are not available with Generics
1001 or 1002.
9109-09&l OO-NA
Issue 1 Revision 0
100 44