OPF-TH2000/OPF-RH2000 User
’s Guide
17
5.2.5 Cascade connection
Distribution amplifiers and multi switchers that are HDCP compliant repeaters can be connected. However,
cascade connection is not available in the following cases:
● Repeater that only supports HDCP pass through (such as some switchers, boosters and so on) is
included
● Another set of OPF-TH/RH2000 (IDK’s fiber optic cable extender supporting HDCP signals)
5.3 Settings
Setting the DIP switch and input equalizer
5.3.1 Setting DIP switch
You can change the settings of the following items of the transmitter and receiver.
Transmitter : +5V power transmission method.
Receiver : Pre-emphasis and swing of TMDS signals, transmission response time of Hot Plug Detect,
and clock speed of Display. Data Channel signals.
Default: OFF (SW1 to SW4)
DIP switch
For transmitter:
DIP SW #
Function
1
+5V Power (pin18 HDMI connector): sets a transmission method.
OFF:
The receiver will 5V Power when + 5V Power signal was
detected by the transmitter.
ON : The receiver will 5V when the link between transmitter and
receiver was established, regardless of +5V that was input to the
transmitter or not.
2
Not used
3
Not used
4
Not used
For receiver:
DIP SW #
Function
1
Sets pre-emphasis of the TMDS signals.
OFF:
Equalizes up to 2.5 dB.
ON : No equalization.
2
Sets the swing of the TMDS signals.
OFF:
13% amplification.
ON : No amplification.
3
Sets the response time of Hot Plug Detect transmission (pin19 HDMI connector).
