Extron electronics IN1804 Series - Ethernet to RS-232 Insertion

IN1804 Seamless Scaling Switchers • Operation 44
• Unidirectional RS-232 insertion via SIS commands (see Unidirectional RS-232
Insertion via SIS Commands on page 47) — A control signal can be inserted to
the RS-232 port of any connected twisted pair device via SIS commands sent to the
IN1804. This method is unidirectional, meaning that the unit receives no response from
the device via the TP port.
Ethernet to RS-232 Insertion
Figure 31 is an example of an Ethernet to RS-232 insertion, in which an Extron controller
provides control of an HD camera via the IN1804 DI and a DTP HDMI 4K 230 transmitter.
Configure this type of insertion as follows:
1. Connect a TP cable from the control system to the LAN port, directly or via a network.
2. If necessary to match the device to be controlled, configure the port RS-232 protocol
(baud rate, parity, data bits, and stop bits) (see RS-232 protocol on the next page ).
AUDIO
INPUTS OVER DTP
RS-232
IR
Tx Rx Tx RxG
POWER
12V
0.7A MAX
SIG LINK
DTP OUT
DTP HDMI 4K 230 Tx
21
1
100-240V~1.0A MAX
50-60 Hz
LIN
R
L OUT
R
Tx Rx G
CT
2
CT
3
CT
4
CT
5
CT
6
CT
7
CT GV+
RS-232
Tx Rx G
IR
RESET
LAN
3
41
A
HDMI/CEC
1B
HDMI/CEC
OUTPUTS
REMOTE
AUDIO
CONTACT
/TALLY
INPUTS
OVER TP
SIG
IN
LINK
RS-232
RS-232
IN1804 DI
HD Camera
1.2A MAX
100-240V ~ 50-60Hz
PWR OUT = 12W
+V +S -S G
1
4
2 3 7
5 6 8
SGSG SGSGTx Rx GTxRxG TxRx GTxRxG RTSCTS
1 2
1 2 3 41 2 3 4
3214G
Tx Rx GTxRxG TxRx GTxRxG RTS
CTS
SGSG SGSG
5 6 7 8 5 6 7 8
SWITCHED 12 VDC
40W MAX TOTAL
3 4
COM
eBUS
FLEX I/ORELAYSIR/SERIAL
12 VDC
AV
LAN
LAN
Control
Processor
RS-232 Insertion
Network
Figure 31. Typical Ethernet to RS-232 Insertion to an Input Endpoint
3. Connect the TP cable to the endpoint as usual.
4. Connect a serial cable from the endpoint to the device to be controlled.
31