User guide

4 HDMI 4x1 Selection Switcher User Guide
Operation of the remote controller
Figure 2: Remote controller
When select any one of the four input channels, press the corresponding key on the
remote controller. Pressing and holding the key 1 for 3 seconds triggers the switcher to
start or stop running in auto-switching or manual-switching mode.
Interface connections
Connection with the control system
You can perform control functions via a control system (Clare Controls, Crestron, or
other system.) using its RS232 communication port. The RS232 communication port is
a female 9-pin D connector (DB9). As shown in the table below, only pins 2, 3, and 5
are used. The standard functions of Tx, Rx, and Gnd apply.
Table 1: RS232 connection definitions
No.
Pin
Function
1
N/u
Unused
2
Tx
Transmit
3
Rx
Receive
4
N/u
Unused
5
Gnd
Ground
6
N/u
Unused
7
N/u
Unused
8
N/u
Unused
9
N/u
Unused