Relay Output; Combus Connection - DSC MAXSYS PC4020CF System Manual

PGM CONNECTIONS
LED INDICATOR
680 Ω
LED
INDICATOR
RESISTOR
(TYPICAL VALUE)
SW AUX CONNECTION
SENSOR RESET FOR SMOKE DETECTOR
IN OUT
RED
ALARM
CONTACT
BLK
OUT
IN
Notes: 5600 Ω applies only to the PC4020
main board. Use 2200 Ω (red, red, red, gold)
for the expansion modules.
Do NOT connect Fire zones or Links Supervisory
zone for Double EOL resistors.
MULTIPLE SMOKE DETECTORS ON ONE ZONE
MULTIPLE RESIDENTIAL SMOKE DETECTORS ON ONE ZONE
BELL LOOP
700 mA MAX
IN OUT
ALARM
CONTACT
IN OUT
4-WIRE SMOKE
DETECTOR POWER
11 V 400 mA MAX
DC
Note: Do NOT connect Fire zones or Links
Supervisory zone for Double EOL resistors.

COMBUS CONNECTION

Notes:
1. The toroid must be installed as shown to reduce the possibility of
electromagnetic interference.
2. If the toroid cannot accomodate the number of cables to be run to the
control, then they should be spliced colour to colour into a single cable
before reaching the toroid.

RELAY OUTPUT

RED BLK
DSC
RM-1
WHT YEL GRN
COM N.C. N.O.
ZONE INPUT MUST BE
PROGRAMMED FOR FIRE
TO ANY
ALARM INPUT: STANDARD FIRE
"COM" TERMINAL
DELAYED FIRE
AUTO VERIFY FIRE
TO ANY ZONE SW AUX PROGRAMMED FOR
"Z" TERMINAL SENSOR RESET
WHT
POWER
SUPERVISORY
RELAY
(DSC RM-1)
GRN
5600 Ω
END OF LINE RESISTOR
(EOLR-2)
TO ZONE "Z"
ZONE INPUT MUST BE
TERMINAL
PROGRAMMED FOR FIRE
PROGRAMMED
ALARM INPUT: STANDARD FIRE
FOR "FIRE"
DELAYED FIRE
AUTO VERIFY FIRE
TO ANY "COM"
MINIMUM 18 AWG WIRING IS REQUIRED
TERMINAL
FOR RESIDENTIAL FIRE ALARM SYSTEMS
WHT
IN OUT
RED
SUPERVISORY
ALARM
CONTACT
(DSC RM-1)
BLK
IN OUT
GRN
5600 Ω
END OF LINE RESISTOR
(EOLR-2)
firealarmresources.com
Loop
Maximum wire run to EOL relay in feet/meters
Current
AWG14 AWG16
mA
50 2750/838 1740/530
100 1375/419 870/265
200 435/132
690/210
300 460/140 290/88
400 345/105 215/65
Bell
Maximum wire run to EOL resistor in feet/meters
Current
AWG14 AWG16
mA
50 2750/838 1740/530
100 1375/419 870/265
200 690/210 435/132
300
460/140 290/88
400 345/105 215/65
500 275/83 170/52
600 230/70 140/43
700 195/59 125/38
Wire Maximum Run to End of Line Resistor
Gauge
AWG14
AWG16
AWG18
AWG19
AWG20
AWG21
AWG22
POWER
RELAY
11
AWG18 AWG19 AWG22
1090/332 869/264 433/131
545/166 435/132 217/66
270/82 217/66 108/33
180/55 144/33 144/43
135/41 108/33 54/16
AWG18 AWG19 AWG22
1090/332 869/264 433/131
545/166 435/132 217/66
270/82 217/66 108/33
180/55 144/33 144/43
135/41 108/33 54/16
105/32 86/26 43/13
90/27 72/22 36/11
80/24 62/19 30/9
(feet / meters)
15500 / 4724
9740 / 2968
6120 / 1865
4860 / 1481
3840 / 1170
3060 / 932
2420 / 737