Specifications

Configuratio

0003097 Revision A 2

Peripheral Cards

Peripheral Interface cards join telephone trunks and peripheral devices (such as SUPERSET

telephones) to the system. Peripheral interface cards include

• Line cards: Connect to single line sets, SUPERSETs, attendant consoles, and

DATASETs

• Trunk cards: Provide an interface from the system to the public switched network and

leased lines.

Line Cards

Line cards include

• COV line card

• DNI line card

• ONS line card

• OPS line card.

COV Line Card

The Control Over Voice (COV) line card supports COV voice mail systems, and interfaces a

maximum of SUPERSET 4 telephones to the SX-2000 system. The COV line card has 12

circuits.

DNI Line Card

The Digital Network Interface (DNI) line card supports music-on-hold and paging, and interfaces

with MITEL digital network devices, including SUPERSET telephones, attendant consoles, and

DATASETs. The DNI line card provides 16 voice and data lines, and has 16 circuits.

ONS Line Card

The On-premises (ONS) line card connects a maximum of 16 standard telephones with line

loop resistance of 400 ohms or less. As such, the ONS line card is used to connect internal

telephone extensions close to the system. The ONS line card also supports modems and fax

machines. The ONS line card has 16 circuits.

OPS Line Card

The Off-premises (OPS) line card is a digital card that interfaces a maximum of eight outside

telephone extensions with the system. The card is meant to interface telephone extensions

whose line loop resistance exceeds 400 ohms. As such, the OPS line card is used to connect

external telephone systems whose loop resistance is anywhere from 400 to 1600 ohms

(external resistance from 600 to 1800 ohms). The OPS line card has eight circuits.