Extron Electronics SW4 3G HD-SDI User Guide - Manual (Page 19)

SW4 3G HD-SDI • Installation and Operation 2-5
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
Receiv
e
Tr
ansmit Ground
RS-232
Tx Rx
DB9 connector (female)
pinout to control equipment
Computer
5 1
9 6
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.