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INTERFACE SPECIFICATIONS
4th byte
Bit Bit details
7 Indicates the
model number
using 1 bit.
0000: Older series (CD16, CD162)
6 0001: X-CD163 series
5
4
3 Spare
2 Spot monitor
operation
1: Spot monitor operating
1 Indicates the
number of spot
monitors using 2
bits
00: 1
0 01: 2
10: 3
11: 4
ALARM STATUS SENSE (D5)
Returns the multiplexer external alarm status (Table 2) using 6
bytes
ALARM STATUS SENSE (D5) bit allocation (Table 2)
D5
d1 d2 d3 d4 d5 d6
RXD
TXD
1st byte
Bit
7 ALARM 8 ON
6 ALARM 7 ON
5 ALARM 6 ON
4 ALARM 5 ON
3 ALARM 4 ON
2 ALARM 3 ON
1 ALARM 2 ON
0 ALARM 1 ON
2nd byte
Bit
7 ALARM 16 ON*
6 ALARM 15 ON*
5 ALARM 14 ON*
4 ALARM 13 ON*
3 ALARM 12 ON*
2 ALARM 11 ON*
1 ALARM 10 ON*
0 ALARM 9 ON*
3rd byte
Bit
7 SENSOR 8 ON
6 SENSOR 7 ON
5 SENSOR 6 ON
4 SENSOR 5 ON
3 SENSOR 4 ON
2 SENSOR 3 ON
1 SENSOR 2 ON
0 SENSOR 1 ON
4th byte
Bit
7 SENSOR 16 ON*
6 SENSOR 15 ON*
5 SENSOR 14 ON*
4 SENSOR 13 ON*
3 SENSOR 12 ON*
2 SENSOR 11 ON*
1 SENSOR 10 ON*
0 SENSOR 9 ON*
5th byte
Bit
7 VIDEO LOSS 8 ON
6 VIDEO LOSS 7 ON
5 VIDEO LOSS 6 ON
4 VIDEO LOSS 5 ON
3 VIDEO LOSS 4 ON
2 VIDEO LOSS 3 ON
1 VIDEO LOSS 2 ON
0 VIDEO LOSS 1 ON
6th byte
Bit
7 VIDEO LOSS 16 ON*
6 VIDEO LOSS 15 ON*
5 VIDEO LOSS 14 ON*
4 VIDEO LOSS 13 ON*
3 VIDEO LOSS 12 ON*
2 VIDEO LOSS 11 ON*
1 VIDEO LOSS 10 ON*
0 VIDEO LOSS 9 ON*
*: Command for MPX-CD163 only
Multiplexer commands
ACK (0A)
Returned when the multiplexer receives a command.
NAK (0B)
Returned when the multiplexer does not receive a command.
ALARM (BF)
When there is alarm input, an ALARM command is sent as a
header, and after this the alarm data (Table 3) is sent using 1
byte.
Alarm data (Table 3)
Bit Bit details
7 Indicates the type of alarm
using 2 bits
00: No alarm input
6 01: External
10: Video loss
11: Motion sensor alarm
5 Spare 0
4 Spare 0
3 Indicates the camera
number using 4 bits
0000: Channel 1
2 0001: Channel 2
1 0010: Channel 3
0 0011: Channel 4
0100: Channel 5
0101: Channel 6
0110: Channel 7
0111: Channel 8
1000: Channel 9
1001: Channel 10*
1010: Channel 11*
1011: Channel 12*
1100: Channel 13*
1101: Channel 14*
1110: Channel 15*
1111: Channel 16*
*: Command for MPX-CD163 only
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