Other Equipment Cables; Table 14 Summary Of Recommended Cables - Panasonic Firetracker FT1020G3 CIE Technical And Programming Manual

When feeder line is required, use suitable multi core twisted pair cable 1.5mm
Table 14 below.
Note: Addressable Alarm devices e.g. 3379, 4477, etc. are connected directly on the
COM loop.
25.6

Other equipment cables

Intrinsically safe equipment for hazardous areas, RIL, MDH, etc, recommended cable
Brooks BAC0898
The maximum cable length and maximum COM loop current, are dependent on the number
and type of loop units and the type of cables used. The cable length for a COM loop is the
total cable length from the CIE and returning back to CIE thus completing the loop.
Since the COM loop cable length is dependent on the number of units and their current
consumption the figure in the table is for the maximum number of COM loop units i.e. 255
units and 350mA.
Table 14 below summarises the different cable types required and the maximum cable
length allowed.

Table 14 Summary of Recommended Cables

Connection type
Com Loop
Conventional Zone
Alarm Devices
Display Units (RS485)
Other cables
2
1.5 mm
twin TPS or equivalent.
Cable type
Twisted pair
Flat pair
Flat pair
CAT5 for data
Twisted pair for power
Flat pair
169
Technical/Programming Manual
Conductive
Resistance/km
surface area
11.9 Ω/km
2
1.5mm
11.9 Ω/km
2
1.5 mm
24 Ω/km
2
1mm
11.9 Ω/km
2
1.5 mm
24 Ω/km
2
1mm
2 2
0.5 mm 0.5 mm
2
1-1.5 mm 1-1.5 mm
24 Ω/km
2
1mm
FT1020G3 Rev 2.2.1
2
. Refer to
Cable
length
1300m
1000m
650m
1000m
650m
1200m
2
1200m
650m