5
IK-E283-001E
Table 1
ADC working
mode
Addressable loop
current drawn by ADC
Admissible quiescent
current of branch line
detectors
Ra alarming
resistor
Rk branch line
end-of-line resistor
1
6.8 mA
1.0 mA
1 kΩ
13 kΩ
2
16 mA
2.0 mA
1 kΩ
5.6 kΩ
3
2.5 mA
150 uA
1 kΩ
47 kΩ
4
0.5 mA
-
8.2 kΩ
13 kΩ
5
2.2 mA
-
-
-
6
1.33 mA
300 uA
1 kΩ
33 kΩ
The entire current consumption by the adapter, regardless its state and the number of elements installed in
the branch line, is constant for a given operation mode.
Mode „1” - enables installation of up to 10 two-state detectors.
Mode „2” - the number of detectors installed in the branch line cannot exceed 20.
Mode „3” - enables installation of 1 - 2 two-state detectors.
Mode „4” - mode provided for interoperation with devices (e.g. monitoring-alarming valves of sprinkling
systems) that are equipped with non-potential NO contacts. An alarm is activated by connecting
to the branch line through an 8.2 kΩ resistor contact.
Mode „5” - mode intended exclusively for DOP-40 beam smoke detector connection (without an end-of-
line resistor – the detector jumper set in ADC-1 position).
Mode „6” - mode provided especially for interoperation with 40-model range detectors of low voltage
power supply. It enables installation of up to 5 40-model range detectors manufactured after
June 15
th
, 2002 (date stated in a warranty certificate).
Detailed information regarding designing rules of detection lines with ADC-4001M detectors installed in is
contained in the POLON 4000 system control panel manuals.
6 POLON 4000 INTRINSICALLY SAFE DETECTION LINES
The POLON 4000 intrinsically safe detection lines can be routed only as branch lines behind ADC-4001M
adapters using intrinsically safe separators manufactured by STAHL:
–
one-channel type
9167/13-11-00s;
–
two-channel type
9167/23-11-00s.
Maximum adapter branch line resistance shall not exceed 2 x 25 Ω (including both sections: before and
behind the separator).
The ADC-4001M adapter operation mode should be assorted suitably to a type and number of intrinsically
safe detectors or manual call points installed in an intrinsically safe line (see Table 2).
