Johnson Controls tyco iSTAR Ultra, Installation And Configuration Manual

Page: 96 / 118

Reader - Voltage Requirements and Distance
5–30 iSTAR Ultra Installation and Configuration Guide
Table 5-9: Equipment Wiring Specifications
Signal From To
Belden #
or equiv.
AWG
#
Prs
Shield
Max
Length Max. Wire
Resistance
RS-485 Comm, Data
Half-duplex 2 wire iSTAR Ultra RM & I/O
Modules 9841 24 1 Yes 4000 ft.
(1212 m) 103

RS-485 Comm, Power iSTAR Ultra RM & I/O
Modules 8442/8461 22/18 1 Yes Range of
600 ft. to
1500 ft.
depends
on AWG See Note
2
RJ45-Ethernet iSTAR Ultra Hub, Host N/A Shielded
Cat-5E
or better 2 Yes 328 ft.
(100 m) 8.4

Supervised Input iSTAR Ultra
or I8 Input 8442/8461 22/18 1 No 2000 ft.
(606 m)

Request-to-exit
(REX or RTE) iSTAR Ultra
or RM-4/4E
module Switch 8442/8461 22/18 1 No 2000 ft.
(606 m)

Door State Monitor
(DSM) iSTAR Ultra
or RM-4/4E
module Contact 8442/8461 22/18 1 No 2000 ft.
(606 m)

Supervised Input (UL)
Note
1
iSTAR Ultra
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 (Direct
Wiegand Connection) iSTAR
Ultra 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

1
To comply with UL requirements, use shielded, minimum 22 AWG stranded, twisted pair cable for monitor points, supervised inputs, DSMs, and REXs.
Use Belden9462 or equivalent
.
2
Check wire lengths to verify that voltage drops are acceptable.
Calculations are based on a single RM-4 reader with keypad and LCD (250 mA):
Using 22 AWG, distance = 600 ft. (.0165 W /ft.)
Using 18 AWG, distance = 1500 ft. (.0065 W /ft.)
NOTE 
Cables that need to be shielded are described in Table 5-9 on page 5-30 .

The Tamper, Low Battery, and AC power fail inputs must be enabled and connected to the iSTAR
Ultra to report for compliance with UL requirements.

For UL listed products, burglar alarm inputs must be supervised.

UL Listed panic hardware shall be used to allow emergency exit from a protected area.