Detcon 1610-N4X - Manual (Page 6)

Model 1610-N4X
1.3 Auxiliary Alarm Relay Board (AARB)
An Auxiliary Alarm Relay Board is included with each Detcon Model 1610-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 @ 120 VAC and 8Amp @ 30 VDC) 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 1610-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 1610-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 1610-N4X
motherboard. P15 (VDC IN) functions as both an alternative DC power source used to power the 1610-
N4X and as power for DC alarms. The 1610-N4X power supply is not designed to provide power for
alarm devices.
1610-N4X Instruction Manual Rev. 1.4 Page 2 of 10