Interlogix KTD-405 Series User Manual - Manual (Page 18)

KTD-405/KTD-405A/KTD-405-2D Controller Keypad
User Manual
14
Connecting a multiplexer or DVMRe and domes
Adhere to all installation guidelines while making connections, including your local codes and those provided
in
Installation guidelines on page 8.
Figure 9. Connecting a keypad (KTD-405 shown) to a multiplexer or DVMRe (shown) and domes
PIN 1 to RS-485 shield (ground one end only)
PIN 3 to RS-485 A
PIN 6 to RS-485 B. (PINs 2, 4, 5, 7, and 8 are not connected.)
12 VDC (observe polarity, if provided transformer not used)
RS-485 OUT (data out to devices such as multiplexers or DVMRe’s; ground at mux/DVMRe)
KEYPAD IN (RS-422 and RS-485 data in from keypad; RS-422 data and power out to keypad)
RS-422 IN (data in from devices such as alarm units, ASCII converters, or keypads (see guidelines))
RS-422 OUT (data out to devices such as domes, switchers, or keypads (other than KTD-405s))
1 2 3 4 5 6 7 8
78
9
10
6
5
3
2
14
POWER 12 VDC
BIAS SWITCH
78
9
10
6
5
3
2
14
RS485
A
B
A
B
+ AUDIO
KEYPAD
RS485
RS485
A
B
RS422 IN
RS422 OUT
SPEAKER SHIELD
SPEAKER
REMOVABLE TERMINAL STRIP
EARTH GROUND
78
9
10
6
5
3
2
14
POWER 12 VDC
BIAS
SWITCH
78
9
10
6
5
3
2
14
RS485
A
B
A
B
+ AUDIO
KEYPAD
RS485
RS485
A
B
RS422 IN
RS422 OUT
SPEAKER SHIELD
SPEAKER
REMOVABLE TERMINAL STRIP
EARTH GROUND
A
B
C
D
E
F
G
H