User manual

9
RS-232 SERIAL COMMUNICATION
What features are available via the RS-232 serial communications port?
The 2:8 Distribution Amplifi er for HDMI can accept commands through the RS-
232 serial communications port located on the rear panel. The current RS-232
control features are:
• Switching/routing of inputs to outputs without the RMT-2IR remote control.
• Switch EDID management modes without opening the unit to physically
modify DIP switches.
• Change IR code channel without opening the unit to physically modify DIP
switches. (The IR code channel will still need to be manually modifi ed on the
RMT-2IR remote control to match the code channel.)
How do I use these features?
These features were initially intended for utilization by custom installers in
automated setups. However, these features can be tested by using any Windows
PC with the Hyperterminal program.
What pins are used for communication with the 2:8 Distribution Amplifi er
for HDMI?
Serial control is done through the RJ-11 port on the front panel. A DB-9 to RJ-11
cable is needed. Please see the diagram below for the pinout.
DB-9 to RJ-11
DB-9
Pin
Description Connects To
RJ-11 Pin
1 Carrier Detect N/A
2 Receive Data 3
3 Transmitted Data 2
4 Data Terminal Ready N/A
5 Ground 1 & 6
6 Data Set Ready N/A
7 Request To Send N/A
8 Clear To Send N/A
9 Ring Indicator N/A
Connectors not to scale
61
RJ-11 6-Pin
61
FRONT: FRONT:
Female DB-9
5
96
1
What are the communication port settings?
Bits per second ................................................................................................. 19200
Data bits .................................................................................................................... 8
Parity .................................................................................................................. None
Stop bits .....................................................................................................................1
Flow Control ....................................................................................................... None