HDC-TH100-D / HDC-RH100-D User’s Guide
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6.2.1 LAN cable
Use a LAN cable meeting 10Base-T/100Base-TX standard.
100-Mbps Ethernet signals can be transmitted over a long distance.
6.2.2 RS-232C cable
RS-232C signals (up to 115.2 Kbps) can be transmitted bi-directionally over a long distance.
Select a cross or straight cable according to the connected devices.
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See: 7.1 RS-232C pin assignment
6.2.3 RS-232C communication function
When designing a control program, note the following points:
● For RS-232C communication, some unnecessary data may be input to RS-232C signals when the
HDC is powered off or the link is established. Some data may possibly be damaged or destroyed.
● Control by communication is not available until the link is established. Wait or retry may be needed.
6.2.4 Cascade connection
Distribution amplifiers and multi switchers that are HDCP-compliant repeaters can be connected and can be
configured in a cascade connection using twisted pair cable extender supporting DVI signals. However,
cascade connection is not available in the following cases:
● HDC-TH100-D / HDC-RH100-D and another set of HDC-TH100-D / HDC-RH100-D are used together.
● A repeater supporting HDCP pass through (Example: Switchers, boosters) is used.
