Specifications

2.2.2 MEDIA CARDS
An OfficeServ 7400 system must have a media card installed in the main control processor (MP40) as the media
card contains the system operating software. The media card can be either a Multimedia (MMC+) or Secure Digital
(SD) type media. The media card can also be used to store a backup customer database to supplement the data-
base stored in NAND Flash. In addition the media card can store backup copies of the operating software for the
LP40, and TEPRI cards.
Note: The SD card has a write protect switch that will prevent backup if in the read only position.
2.3 INTERFACE CARDS
These cards provide the interface connections for telephone lines and stations to the KSU and expansion cabi-
nets. These cards fit into the universal card slots to configure the system as required.
2.3.1 TRUNK CARDS
8TRK2 BOARD
This card contains eight loop start C.O. line interface circuits with C.O. disconnect detection. It also contains the
circuitry needed for Caller ID. It can be inserted in any universal card slot in all cabinets.
16TRK2 BOARD
This card contains sixteen loop start C.O. line interface circuits with C.O. disconnect detection. It also contains the
circuitry needed for Caller ID. It can be inserted in any universal card slot in all cabinets.
TEPRIa DIGITAL TRUNK BOARD
When programmed as a T1 this card provides up to 24 trunk circuits in any combination of the following:
• Loop start lines
• DID (Direct Inward Dialing)
• Ground start lines
• E & M tie lines or two way DID calling
When the card is programmed as a PRI it will provide 23 bearer channels and 1 data channel (23B+D). This card
can be installed in any universal slot in any OfficeServ 7400 cabinet. If using an OfficeServ 7200 expansion cabi-
2.3
FIGURE 2-1