Connection Overview; Grounding; Cable Types And Lengths - Honeywell SEC-H-602 Manual

Connection Overview

See Fig. 4 on page 11 to locate connectors and other
components on the Security Controller.
Make connections to the Security Controller in the
following order.
1. Connect the earth grounding wire to a nearby earth
grounding point. See "Grounding" below for details.
2. Connect wiring to door readers, door strikes, door
switches, and any other security I/O to the Security
Controller.
See "Security I/O Wiring," page 14.
3. If SEC-H-R2R/U and/or SEC-H-RIO/U expansion
modules are installed, make similar security I/O
connections to these devices. Refer to the appropri-
ate mounting and wiring guide for complete details.
EARTH
GROUND
Fig. 6. Connect earth ground using supplied grounding wire to grounding lug.
In addition, connect the earth grounding lug of each
expansion module to earth ground in the same manner.

Cable Types and Lengths

Recommended cable types and maximum lengths are as
follows:
• RS-485 communications between the Security
Controller and expansion modules, use a 24 AWG
shielded, twisted pair communication cable with low
capacitance (Belden #9501 or equivalent). Maximum
length is 4000 feet (1220m).
• Reader Inputs use Belden #8725 (4-pair) or #8723 (2-
pair) or equivalent. Maximum length 500 feet (152m).
SEC-H-602 AND SEC-H-616 SECURITY CONTROLLER
4. Connect communications cables. See "Communi-
cations Wiring," page 21, for ports available on the
Security Controller base unit.
5. Prepare power wiring (leave the unit powered off).
See "Power Wiring," page 23, for details.
6. Connect the backup battery to the Security Control-
ler battery connector, and apply power to the unit.
See "Connect the Backup Batteries," page 23, and
"Apply Power," page 24.

Grounding

Connect the supplied earth grounding wire to the ground
spade lug (0.187") on the Security Controller, and to a
nearby earth ground (see Figure 6 below). Keep this wire
as short as possible.
SECURITY
CONTROLLER
• Supervised Inputs and Digital Inputs use a 22 AWG
shielded, twisted pair cable control cable (Belden
#9461 or equivalent). Maximum length 2000 feet
(610m).
• Relay Outputs use 18 AWG unshielded
instrumentation cable (Belden #9740 or equivalent),
maximum length is 2000 feet (610m). Relay outputs
are rated for a maximum load of 3.0A, 24 Vac/dc.
• If wiring to expansion modules in a non-powered
Security Enclosure, "Trunk power" cabling (PS-, PS+,
BB), using a "triad" type (3 conductor) shielded cable,
such as Belden #1031A (14AWG), or equivalent.
Maximum distances vary, see "Voltage Drop
Considerations," page 7.
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M35016
31-00012—03