CHAPTER 2.
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Line connection part
The E8S board has the line connection part for connecting subscriber/trunk lines.
Figure 2.13 E8S Line Connection Part
Table 2.14 E8S Ports for External Connections
Port
Description
P10
Line connector for the E8S Base 8SLI ports (four (4) ports)
P11
Line connector for the E8S Base 8SLI ports (four (4) ports)
P12
Line connector for the option board (4TRM/2BRM/4DLM/4SL2) mounted at
LOC1 of the E8S)
P13
Line connector for the option board (4TRM/2BRM/4DLM/4SL2) mounted at
LOC2 of the E8S)
P14
Line connector for the option board (4TRM/2BRM/4DLM/4SL2) mounted at
LOC3 of the E8S)
2.3.4 Data Board
The Modem used in OfficeServ 7070 system should support 2 wire full duplex, can be
shared with the Modem of OfficeServ 7400 system. Modem board is mounted on Loc. 3 of
BMP board. When the board is mounted, be careful of the direction of the connectors.
Modem board is connected to OfficeServ 7070 system through V.24 interface and uses the
Modem chip for central office that PCM highway interface is available. In addition, the
Modem board supports the V.90 protocol. Modem board is controlled through the serial
communication type in OfficeServ 7070 and the command used is standard AT commands.
Key functions
The Modem board has the following functions:
Base board has a 2-Wire Full Duplex Modem and can commonly use it with
OfficeServ 7000 series system. Be careful of the direction of the connectors when
mounting/demounting the board to the BMP board.
The Modem board operates in OfficeServ 7070 via V.24 interface and uses a Modem
chip for Central Office, which can perform Pulse Code Modulation (PCM) highway
interface. In addition, the Modem board supports V.90 protocol. OfficeServ 7070
controls the Modem board via serial communication using standard AT commands.
The main purpose of Modem is a remote DB access through IT(Installation-Tool).
P10
P11
P12
P13
P14