Detcon 610-N4X - Manual (Page 6)

Model 610-N4X
610-N4X Instruction Manual Rev. 2.2 Page 2 of 8
1.3 Auxiliary Alarm Relay Board (AARB)
An Auxiliary Alarm Relay Board is included with each Detcon Model 610-N4X. The board is mounted on the
bottom quadrant of the motherboard. The AARB (Figure 1) consists of four interposing relays (contacts are
rated 10Amp @ 120VAC and 8Amp @ 30VDC) with 24VDC coils. The AARB can be configured for Form-
C dry contacts (common, normally open and normally closed), AC power, or DC power.
2.50
2.85
3.04
3.35
Ø0.165 X4
Figure 1 Auxiliary Alarm Relay Board
An ‘IN/OUT’ termination is provided for applying AC or DC power to any one of the interposing relays. A
gold plated jumper tab is used to apply the power option to the corresponding relay(s). The 4 relays may be
used in any combination of Form-C dry contacts, DC outputs, and AC outputs. The terminations labeled
“ALM COIL PWR” (P20) located on the lower left of the motherboard are used to power the relay coils on the
AARB. Terminals P1+4, P1+3, P1+2, and P1+1 on the AARB provide for various relay logic setups through
the Form-C dry contact terminals of each Model 10 Control Module. P1-COM on the AARB should be wired
directly back to P20-2 (ALM COIL PWR (-)) on the motherboard.
The terminations labeled “ALM PWR” located on the left of the 610-N4X motherboard can be used to provide
power to the In/Out termination on the AARB (AARB P2-IN/OUT). Alarm power terminations for AC (P18)
come directly from the AC input terminals (P16) on the 610-N4X motherboard. The DC power terminations
at P18 come directly from the VDC IN Terminals (P15).
NOTE: DC power used to drive alarms must be obtained through a remote DC power source. The
remote DC power source should be terminated at P15 labeled “VDC IN” located on the 610-N4X
motherboard. Terminal Block P15 (VDC IN) functions as an alternative DC power source used to power
the 610-N4X and as power for DC alarms. The 610-N4X power supply is not designed to provide power
for alarm devices.