Mike's PBX Cookbook

MRV Serial Pinout

Serial port jacks:

The signal assignments of the MRV 8-pin (RJ-45) jacks are shown below:

MRV Serial Port Pinout
Source: MRV Communications

The pinout for the Diagnostic Port connector is the same as the other serial connectors.

Note, the crossing of pins 3 and 6 (TXD/RXD) may introduce noise with CAT5 cable, flat ribbon cable is recommended.

Modular Adapters:

MRV Communications provides the following modular adapters for use with LX-series units:

MRV serial cables:

Standard default MRV serial cable...

MRV
RJ-45 Pin
Signal
Name
Female
DB9 Pin
1CTS8
2DTR4
3TXD3
4 & 5GND5
6RXD2
7DSR1 & 6
8RTS7
Standard default
MRV serial cable.

RJ45 plug

Null Modem cable (NTDU6302)...

MRV
RJ-45 Pin
Signal
Name
Female
DB9 Pin
1RTS7
2DSR1 & 6
3RXD2
4 & 5GND5
6TXD3
7DTR4
8CTS8
Null Modem cable
(NTDU6302)

RJ45 plug

MG1010 TTY's to MRV:

Use the following pinout for serial communications between an MRV and the MGU serial ports.
This configuration works for either CPDC, CPPM, or MGC cards. Note, pin 5 is open at the MRV end.

MGU TTY to MRV: 1-1 , 2-2 , 3-7 , 4-4 , 5-3 , 6-6 , and 7-8 .

MGU TTY
12345678
MRV Port
12345678
  RJ45 plug

Using the code above, the MG1010 TTY end is standard 568B. At the MRV Port end, cut the Brown wire, and leave pin 5 open.

ADAN TTY TYPE: MGC, ports 0, 1, 2

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