Extron electronic SW4 3G HD-SDI user manual RS-232 connector wiring

	N When the input rate is recognized as 270 Mbps,
	1.485 Gpbs, or 2.97 Gbps, the output is re-clocked to the
	recognized rate.
	N Outputs 1 and 2 simultaneously output identical signals.
D	RS-232 connector — Connect a cable with a 3.5 mm, 3-pole
	captive screw connector to this port for bidirectional RS-232
	communication. Wire the connectors as shown in the following
	figure.

Switcher

RS-232

Tx Rx

Ground

Transmit

Receive

Computer

5 1

9 6

DB9 connector (female)

pinout to control equipment

Pin	RS-232	Function
1	—	—
2	RX	Receive data (+)
3	TX	Transmit data (–)
4	—	—
5	Gnd	Signal ground
6	—	—
7	—	—
8	—	—
9	—	—

RS-232 connector wiring

This port has the following RS-232 protocol:

•9600 baud

•1 stop bit

•No parity

•8 data bits

See chapter 3, “Serial Communication,” for Simple Instruction Set (SIS) commands to communicate with the switcher via RS-232.

SW4 3G HD-SDI • Installation and Operation 2-5