Specifications

OfficeServ 7200 System Description

 R2 CID Module 2 (RCM2): RCM2 detects an office line CID or transmits the CID

information to the extension telephone as the ASIC chips, which detect the CID. In addition,

RCM2 creates the R2 signal, the signaling signal between offices through the composed

option board. The location that the RCM2 is mounted in the MP20 is provided and

displayed on the MP20. If the RCM board is mounted, it is available to create the R2

signal through the 30 channels, and detect the R2 signal of 8 channels or

office/extension CID of 14 channel. Selecting a detected signal (R2/CID) is decided by

the switch location of the RCM2. The Simultaneous R2 CID Support function

supports the 4 R2 channels and 6 office/extension CID channels at the same time

(Over V2.45)

 Miscellaneous (MIS): MIS is the option board mounted in the MP20. The location is

provided and displayed on the MP20. MIS provides 2 external holding voice source

ports, an external paging port, a loud bell port, a common bell port, and also provides

2 dry contact ports that connect or disconnects the signal transmission or power supply

with external equipments.

 Common Resource Module (CRM): The CRM is to detect and generate DTMF signals

and CID signals. The CRM is mounted on LOC1 or LOC2 in the MP 20 and the

location is indicated on the MP20.

 MP20 has a 2-Wire Full Duplex modem and can commonly use it with OfficeServ 500

system. Be careful with the direction of the MODEM when mounting/dismounting on

the MP20. The MODEM operates in OfficeServ 7200 via V.23 interface and uses a

modem chip for Central Office, which can perform Pulse Code Modulation (PCM)

highway interface. In addition, the MODEM supports V.90 protocol. OfficeServ 7200

controls the MODEM via serial communication using standard AT commands.

Table 2.3 Option board of the MP20

MP20

Option board

LOC1 LOC2 LOC3

Max

MFM ¡ ¡ - 1

RCM - ¡ - 1

RCM2 - ¡ - 1

MIS - - ¡ 1

CRM ¡ ¡ - 2

MODEM ¡ - - 1