MRV Serial Pinout
Serial port jacks:
The signal assignments of the MRV 8-pin (RJ-45) jacks are shown below:
- RNG/CTS (input)
- DTR (output)
- TXD (output)
- TX GND
- RX GND
- RXD (input)
- DSR/DCD (input)
- RTS (output)
The pinout for the Diagnostic Port connector is the same as the other serial connectors.
Modular Adapters:
MRV Communications provides the following modular adapters for use with LX-series units:
- Female DB-9 (P/N MX-350-0308)
- Female DB-25 (P/N MX-350-0181)
- Male DB-25 (P/N MX-350-0179) - supports RING
- Male DB-25 (P/N MX-350-0180) - supports RTS/CTS
- Male RJ-45 to Male RJ-45 with connectors, 10 feet (P/N-151-3028)
MRV serial cables:
- NTDU6302 - Connects MRV Terminal Server to any standard DTE port, or DCE port when a Null modem is used
- NTDU6303 - Terminal server cable kit for interfacing with various terminal ports, eg: Signaling Server
Standard default MRV serial cable
Adapter + RJ45 Rollover Cable, for a PC COM port
Adapter + RJ45 Rollover Cable, for a PC COM port
| MRV RJ45 Pin | 568B Colour | Signal Name | Female DB9 Pin |
|---|---|---|---|
| 1 |  | CTS | 8 |
| 2 |  | DTR | 4 |
| 3 |  | TXD | 3 |
| 4 |  | GND | 5 |
| 5 |  | GND | 5 |
| 6 |  | RXD | 2 |
| 7 |  | DSR | 1 & 6 |
| 8 |  | RTS | 7 |
Null Modem cable (NTDU6302)
NTDU6302 MRV Terminal Server Cable Pinout
NTDU6302 MRV Terminal Server Cable Pinout
| MRV RJ45 Pin | 568B Colour | Signal Name | Female DB9 Pin |
|---|---|---|---|
| 1 | | RTS | 7 |
| 2 | | DSR | 1 & 6 |
| 3 | | RXD | 2 |
| 4 | | GND | 5 |
| 5 | | GND | 5 |
| 6 | | TXD | 3 |
| 7 | | DTR | 4 |
| 8 | | CTS | 8 |
The MRV LX supplied RJ45 rollover cable plus DB9 adapter, connects an MRV serial port to a DCE device - eg: a PC with PuTTy for MRV configuration via the Diagnostic/Management port.
Note: the crossing of pins 3 and 6 (TXD/RXD) may introduce noise with CAT5 cable, therefore flat ribbon cable is recommended.