iPECS-MG
Hardware Description and Installation Manual Issue 1.1
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5.2.2 Modem Unit Installation
Before installing the MPB, if required, the optional Modem Unit (MODU) must be installed. The
MODU is an analog modem supporting Bell, ITU-T, V.34, V.32BIS, V.90 Protocol at a baud rate
of 300bps to 33Kbps with automatic rate negotiation. The MODU provides a modem for
connection to the system database and maintenance functions. The MODU can be accessed
remotely over an analog CO line by calling the Modem CO line or Station. For additional
information on MODU set-up, see the iPECS-MG Admin Manual.
The MODU is installed on connectors CN4 and CN5 of the MPB as shown in Figure 5.2-1. Use
care to align pins of the CN4 and CN 5 connector with the CN1 and CN2 connectors on the
MODU and press firmly in place.
5.2.3 MPB Installation
Before installing the MPB, mount the optional MODU as described above. The MPB must be
installed in the MPB slot, the upper left slot of the BKSU.
Assure Power is OFF
Slide the MPB in the guide rails of the first slot (upper left) of the Basic KSU.
Tighten thumbscrews to hold the board firmly in place.
5.2.4 LAN Port Wiring
The LAN connector accesses the System Ethernet port (10/100 Base-T) for Web access to the
System database and maintenance functions as well as the basic 4 channel VoIP circuit, if
installed. The LAN connector pin-outs are shown in the chart below and should be wired to an
appropriate Ethernet switch port. Note that by reversing the TX and RX pins, the LAN
connector can be directly connected to a PC for Admin and maintenance purposes.
Table 5.2.4-1 LAN Port Connector
CONNECTOR PIN SIGNAL FUNCTION
RJ45 4,5,7,8 Not used
1 TX+ Transmit Data
2 TX- Transmit Data
3 RX- Receive Data
6 RX+ Receive Data
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