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MK20HD
English
DIP SWITCH SETTING
The DIP Switch on the back of the MK20HD is solely used for manually setting the unit’s ID. Each of
the five adjustable levers is correspondent to the common binary value. The first two levers are for
IR remote ID 1 to 3, the last three levers are RS485 connection ID 1 through 5 when the camera is
connected and controlled by a PTZ camera controller using the RS485 protocol.
Setting unit ID is particularly useful when multiple MK20HDs are deployed in an area, and user
can switch controls among multiple cameras with a single IR remote that comes included with the
MK20HD.
IR Remote ID Setting
As mentioned prior, only the first two levers are used for setting the IR remote ID 1 to 3. If the levers
are down, they represent 0s; if the levers are up, they represent 1s. Therefore, to set ID 1, the binary
value for 1 is 01, you need to set the first lever down and the second lever up.
To set ID 2, the binary value for 2 is 10, you need to set the first lever up and the second lever down.
To set ID 3, the binary value for 3 is 11, you need to set both levers to the up position.
RS485 ID Setting
For RS485 ID setting, only the last three levers are used. If the levers are down, they represent 0s; if
the levers are up, they represent 1s. The following decimal to binary conversion chart will offer a more
concise understanding on setting the unit ID.
Decimal Value
Binary Value
1
001
2
010
3
011
4
100
5
101
Note 1:
The IR Remote ID and RS485 ID do not collide with each other, a single MK20HD can have
a different IR Remote ID and RS485 ID.
Note 2:
When MK20HD PTZ Cameras are using RS422 control protocol in conjunction with MK20RC
PTZ Camera Remote Control, all the RS485 IDs must be set to 1 (Binary value of 001).
