11
PRS-UM-PPSM-EN-Rev.03-10.04.2020
4.3 Main Power Connection
Connection must be made three-wire 1.5mm
2
cross section cable to the main supply terminal entries
and fixed by using cable fastener on the terminal. Make sure all the detectors connected properly
before applying the power.
Name
Usage
L
Phase
Gnd
Ground
N
Neutral
Table
5 : Main power connection details
4.4 Detector Connections
Each PPS panel zone module can manage up to 32 PPS series detectors via RS485 serial conneciton.
V+, V-(GND), A and B ports must be connected via using four-wire cable. Detector connections supply
12-24VDC power to detector and read the output signal of detector from A and B ports. Thus
connections should be made correctly with extra care to do not mix ports and not cause any damage
on the detectors. Detector power connection should be done with 1.5mm
2
cross section cable. The
total distance between control panel and detectors should not exceed 800m. Detector connections
should be made with 4 core cable wire that 2 for power and 2 for RS485 and pin definitions are as
follows:
V+
output +24VDC (Only for panel and detectors, do not use for any other device)
A
input RS485 port A
B
input RS485 port B
V-
Output -VDC (GND)
Table 6 : Connection pin definitions
The wiring for detectors utilized with RS485 board should be done by using connection cable EIA
RS485 2 core wires with section 0.22 / 0.35 mm2 and shielded. Nominal capacity between the wires
< 50pF/m and nominal impedance 120 Ohms.
The V+, V- ports and A,B ports are located on same socket in PPS panel zone module. These ports are
formed together on Prosense PPS series detectors on detector main board. The connections should
be done with care to do not mix power and RS485 ports. All detectors will be connected through one
cable via hopping one detector to another till the last detector on the line.
