Extron electronics SW USB Series Instrucciones de operaciones descargar pdf (Pagina 19)

2-9

SW USB Series • Installation

PRELIMINARY

Wiring for RS-232 Communication

RS-232 port

The 3-pole, 3.5 mm captive screw connector labeled “RS-232” is used for optional

RS-232 communication between the SW USB and a PC or control system. The

control system plugged into this port can issue commands to the SW USB, which

can pass the commands through to an Extron A/V switcher that is plugged into the

RS-232 Pass Thru port.

Your RS-232 computer or control system should not be one of the host devices

that are being switched. Use a separate computer for RS-232 control.

To connect your computer or control system to the RS-232 connector, use a female

9-pin D-to-bare-wire RS-232 cable, such as the Extron UC50 cable.

. Wire the unterminated end of the RS-232 cable to one of the provided 3-pin

captive screw plugs.

. Plug the wired 3-pin connector into the RS-232 receptacle on the switcher’s

rear panel.

Host PC Pin Switcher Pin

2 (Rx) Tx

3 (Tx) Rx

5 (Gnd)

If you use cable that has a

drain wire, tie the drain wire to

ground at both ends.

Connect a ground wire between

the switcher and the computer or

control system.

RS-232

To Computer or

Control System

RS-232 Port

SW USB Switcher

Rear Ranel

RS-232 Port

TxRx

9 pin

Connector

(Rx) Receive Pin to Tr ansmit (Tx) Pin 3

Ground

(Tx) Tr ansmit Pin to Receive (Rx) Pin 2

Wiring the RS-232 connector

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 45 46

Sin comentarios

Extron electronics SW USB Series Instrucciones de operaciones Pagina 19