Interface Cards; Trunk Cards - Samsung OfficeServ 7200 General Description Manual

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

8TRK 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.
TEPRI 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 slots 3, 4, and 5 of main cabinet and slot 3 in the expansion cabinet. This card is also used for
networking to other systems (QSig/PRI networking)*. A maximum of 4 TEPRI boards can be installed per system.
MGI (MEDIA GATEWAY INTERFACE)
The MGI card supports up to 16 VoIP channels. THERE ARE 0 EMBEDDED ON THE CARD. 4 channels can be
added by plugging in a MGI-D daughter board. Up to four (4) MGI-D daughter boards can be added to the MGI
board, where each MGI-D daughter board provides 4 voice channels.
The MGI3 has the following capabilities:
• IP Phones
• IP Networking (Network multiple systems over an IP Network)*
• G.729 (8K) CODEC, G.723.1, G.711, G.729A CODECs
• IP Trunking (SIP/H.323)
• T.38 Fax CODEC
• Inband or Out-of-band signaling of DTMF tones
Note: The MGI can go in any universal slot in any cabinet. Maximum 10 per system.
*The OfficeServ 7200 can network using QSig over PRI and QSig over IP to other Samsung OfficeServ systems or
7200 systems.
2.3