Kramer-electronics FC-24ETH Manual de usuario descargar pdf (Pagina 25)

Connecting the FC-21ETH, FC-22ETH and FC-24ETH

6.2 Connecting to the Ethernet Controller via RS-232

To connect to the FC-21ETH, FC-22ETH and FC-24ETH via RS-232:

 Connect the RS-232, 3-pin, terminal block connectors on the rear panel of

the FC-21ETH, FC-22ETH and FC-24ETH unit via 3-wire cable (pin TX to

pin 2, RX to pin 3, and G to pin 5) to the RS-232 9-pin D-sub port on the

devices to be controlled

6.3 Connecting to a Controlled Device via the RS-485 Port

You can control a device up to 1200m (3900ft) away by using the RS-232/RS-485

port on the FC-21ETH, FC-22ETH and FC-24ETH and setting it to RS-485

operation. To connect via RS-485, you must switch the Serial 1 port on the rear

panel of the FC-21ETH, FC-22ETH and FC-24ETH to RS-485 operation and set

the RS-485 bus termination.

Note: On the dual-use Serial port, the connections are G, B, A in place of G, Rx,

Tx.

To connect a device with an RS-485 port to the FC-21ETH, FC-22ETH and

FC-24ETH:

1. Depress the Serial Select switch on the rear panel of the FC-21ETH,

FC-22ETH and FC-24ETH.

2. Connect the devices as follows:

 Connect the B (–) pin on the RS-485 port of the PC to the Tx (A) pin on

the RS-485 port on the rear panel of the FC-21ETH, FC-22ETH and

FC-24ETH

 Connect the A (+) pin on the RS-485 port of the PC to the Rx (B) pin on

the RS-485 port on the rear panel of the FC-21ETH, FC-22ETH and

FC-24ETH

 Connect the G pin on the RS-485 port of the PC to the G pin on the

RS-485 port on the rear panel of the FC-21ETH, FC-22ETH and

FC-24ETH

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Kramer-electronics FC-24ETH Manual de usuario Pagina 25