User guide

28 HDMI5 Component Video Switch

Mode 1

Relays toggle when activated by button press, or RS-232 command. Selecting inputs has no

affect on the relays, and any ‘time’ value given is ignored.

Mode 2

Relays stay on for a momentary amount of time when activated by a button press, or RS-232

command. The value ‘time’ indicates the amount of time the relay stays on (in 15.626ms incre-

ments). If time is set to ‘0’, then relays will toggle like Mode 1. Selecting inputs has no affect on

the relays.

Mode 3

Relays become active when either a video or audio input is selected and the bit for that input

is set to ‘1’ in the ‘vid_msk’ or ‘aud_msk’ parameter. The ‘time’ value given is how long a relay

remains active after a input is selected that does not match a ‘1’ bit in ‘vid_msk’ or ‘aud_msk’.

Mode 4

Relays become active for a momentary amount of time when either a video or audio input is

selected and the bit for that input is set to ‘1’ in the ‘vid_msk’ or ‘aud_msk’ parameter. The ‘time’

value given is how long a relay remains active before turn off.

The following examples set Relay ‘1’ to the four different modes:

RLS 1,0,,0,0 Set to “Mode 0”, ‘timing’ values are ignored

RLS 1,1,time,0,0 Set to “Mode 1”, time not set to 0

RLS 1,0,time,vid_msk,aud_msk Set to “Mode 3”, at least one mask not set to 0

RLS 1,1,time,vid_msk,aud_msk Set to “Mode 4”, at least one mask not set to 0

HDMI5 Command Ref. (Cont’d)

1HDMI5 Component Video Switch

 e RS-232 Port

The RS-232 port on the HDMI5 is the same format, and pinout, as a PC-modem, and uses the

same type of cable as a standard serial modem would, which is a standard straight through

cable. Do not use a cable that is marked as a “Null Modem” cable.

The HDMI5 can also be used with any USB to RS-232 conversion cable, these are all typically

straight through cables.

The RS-232 port is a female type DE-9 connector (sometimes mistakenly referred to as a DB-9

connector) with the following pinout:

5 4 3 2 1

9 8 7 6

Pin deﬁ nitions:

1 - No Connect 6 - No Connect

2 - TX 7 - No Connect

3 - RX 8 - No Connect

4 - No Connect 9 - No Connect

5 - GND

The port settings used by the HDMI5 are:

Baudrate: 9600

Data Bits: 8

Stop Bits: 1

Parity: NONE