Mitel SX-2000 - Manual (Page 74)

SX-200 General Information Guide
60 Revision A 50003510
SX-200 SPINE Modules
LS/CLASS Module - The LS/CLASS module mounts in any slot of the SX-200 SPINE and
interfaces four trunk circuits to the system. It includes circuitry to switch trunk circuit 1 to a SFT
telephone set during power or system failure.
DNIC Module - The Digital Network Interface Circuit (DNIC) module interfaces up to four DNIC
devices to the SX-200 SPINE. DNIC devices include SUPERSET 4001 telephones,
SUPERSET 4015 telephones, SUPERSET 4025 telephones. SUPERSET 4125 telephones,
SUPERSET 4150 telephones, SUPERSET 401+ telephones, SUPERSET 410 telephones,
SUPERSET 420 telephones, SUPERSET 430 telephones, Programmable Key Modules,
DATASETs, SUPERCONSOLE 1000 Attendant Console, DMP Module, and SUPERSET 7000
Attendant Console.
ONS Module - The ON-Premises (ONS) line module interfaces up to four industry-standard
DTMF telephone sets within the building to the SX-200 SPINE. The ONS module plugs into
any slot, but each SPINE is limited to not more than three ONS modules. The ONS module
does not support rotary dial telephones.
The following table provides the engineering limitations for a 48-port SX-200 SPINE bay. Spine
A also contains the Control Module II.
Power Supplies
The following identifies the power supply requirements:
Bay Power Supply
The Bay Power Supply unit is a rack-mounted AC-to-DC converter that furnishes the required
operating voltages for circuit cards in the 96-port digital bays. The supply also contains a ringing
voltage generator.
Power Module II
The Power Module II provides power to the SX-200 SPINE. It connects to the backplane through
a 8-conductor cable located at the top of the Power Module.
ONS Modules installed in
SPINE A or SPINE B
DNIC and/or LS/CLASS Modules Allowed
SPINE A SPINE B
0 6 6
1 4 5
2 2 4
3 0 3