Eclipse Installation, Commissioning & Operating Manual
Approved Document Ref: UI-ECL-01 Issue 8.0
11
DESIGN CONSIDERATIONS
GENERAL TWIN WIRE SYSTEM SCHEMATIC
-VE
E
R+
R+
R-
R-
R
EM
O
TE
IN
D
IC
AT
O
R
R
IL
58
+
_
Typical Twin Wire
Circuit Wiring
4K7 OHM
END OF LINE
RESISTOR
Note:
On a Twin Wire circuit
the sounders are connected in reverse polarity
to the detectors and call points
Note:
Zone circuit configuration
is set to ‘Conventional’ by default.
‘Twin Wire’ mode must be set using DIL Switch 1
on Main PCB.
-
+
ZONE 1
APOLLO TWIN WIRE BASE
45681-206
APOLLO TWIN WIRE BASE
45681-206
TWIN WIRE CALL POINT
MCP1B-R-TW
TWIN WIRE CALL POINT
MCP1B-R-TW
1 2 3 4
_ _ + +
470
1 2 3 4
_ _ + +
470
-VE
+VE
MOTORISED BELL
POLARISED
ELECTRONIC SOUNDER
POLARISED
+VE
+VE
-VE
-VE
+VE
1
2
3
ON
1 2 3 4 5 6 7
