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Appendix D - Cabling the LX-4000 Series

Cabling Considerations

Standard cabling items available from MRV allow you to connect to any serial device that uses male

or female DB-25 or DB-9 connectors. All you need is the appropriate cable (crossover cable for

connecting to a DTE (Data Terminal Equipment) device, straight-through cable for connecting to a

DCE (Data Communication Equipment) device), and the correct modular adapter (male or female DB-

25 connector), which is essentially an RJ-45-to-DB25 adapter.

Serial Device Connectors

The signal assignments of the 8-pin jacks are shown in Figure 23.

Figure 23 - Serial Device Connector (RJ-45) Signal Assignments

Diagnostic Port Connector (Port 0)

The pinout for the Diagnostic Port connector is the same as that of the serial connector.

12345678 1234

Rj-45 Jack

(Female)

Rj-45 Plug

(Male)

Pin Signal

1 CTS

2 DTR

3 TXD

4 SGND

5 SGND

6 RXD

7 DSR

8 RTS

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 64 65

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Mrv-communications LX-4000 Series Bedienungsanleitung Seite 55