Installation Requirements
12
Wiring Requirements
Table 6 shows general wiring requirements for an iSTAR Edge and its components.
Table 6: Equipment Wiring Specifications
Signal From To
Belden #
or equiv.
AWG
#
Prs
Shield
Max
Length
Max. Wire
Resistance
RS-485 Comm, two
wire
iSTAR
Edge
RM & I/O
Modules
9841 24 1 Yes 4000 ft.
(1212 m)
103
Power iSTAR
Edge
RM & I/O
Modules
8442/8461 22/18 1 No Range of
600 ft. to
1500 ft.
depends
on AWG
See Note
b
RJ45-Ethernet iSTAR
Edge
Hub, Host N/A Cat 5 or
more
24
2 N/A 328 ft.
(100 m)
8.4
Supervised Input iSTAR
Edge or I8
Input 8442/8461 22/18 1 No 2000 ft.
(606 m)
Request-to-exit
(REX or RTE)
iSTAR
Edge or
RM-4/4E
module
Switch 8442/8461 22/18 1 No 2000 ft.
(606 m)
Door contact
(DSM)
iSTAR
Edge or
RM-4/4E
module
Contact 8442/8461 22/18 1 No 2000 ft.
(606 m)
Supervised Input (UL)
Note
a
iSTAR
Edge or I8
Input 9462 22 1 Yes 2000 ft.
(606 m)
Relay Control RM-4
module
ARM-1 9462 22 1 Yes 25 ft.
(7.6 m)
.04
Reader Data iSTAR
Edge or
RM-4/4E
module
Proximity/
Wiegand
signaling
read head
9942
9260
Alpha wire
5386C
22
20
18
3 Yes 200 ft.
(60.96 m)
300 ft.
(91.4 m)
500 ft.
(152.4 m)
3.2
3.2
3.2
a. To comply with UL requirements, use shielded, minimum 22 AWG stranded, twisted pair cable for monitor points, DSMs, and
REXs. Use Belden 9462 or equivalent.
b. Calculations are based on a single RM-4 reader with keypad and LCD (250 mA):
Using 22 AWG, distance = 600 ft. (.0165 ft.)
Using 18 AWG, distance = 1500 ft. (.0065 ft.)
NOTE
UL Listed Panic hardware shall be used to allow emergency exit from a protected area.