Distech Controls Security EC-BOS-602AX Hardware Installation Manual page 8

Connection Overview
Connection Overview
See Figure 2 on page 6 to locate connectors and other components on the Remote IO Security Module
controller.
Make connections to the Remote IO Security module in the following order.
Connect the earth grounding wire to a nearby earth grounding point. See
1.
Connect wiring from security I/O devices to the Remote IO Security module. See the
2.
section on page 9. If other expansion modules are being installed, make similar security I/O connections
to these devices. Refer to the appropriate hardware installation guides.
3. Connect RS-485 communications wiring. See the
4. Prepare power wiring (leave the unit powered off). See
5. Apply power to the Remote IO Security module, and if not already powered, to the EC-BOS
controller. See "Power Up and Initial Checkout,"
Grounding
Connect the supplied earth grounding wire to the ground spade lug (0.187") on the Remote IO Security module,
and the other end to a nearby earth ground (see
Figure 4 Connect earth ground using supplied grounding wire to grounding lug.
Earth Ground
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
IO Security), use a 24 AWG shielded, twisted pair communication cable with low capacitance (Belden
#9501 or equivalent). Maximum length is 4000 feet (1220m).
• Supervised Inputs and
#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.
For lengths between different enclosures: If mounting in a non-powered Security Enclosure (Medium,
•
EC-SEC-EN-LNP), the "Trunk power" cabling (PS-, PS+, BB) requires a "triad" type (3 conductor) shielded
cable, such as Belden #1031A (14AWG), or equivalent. Maximum distances vary, see the
AX
EC-BOS-602/616
8
Figure
Remote IO
Security
between the EC-BOS
Digital Inputs use a 22 AWG shielded, twisted pair cable control cable (Belden
Hardware Installation Guide for more details.
Updated: January 2014
"RS-485 Communications"
"Power and Backup Battery,"
page 18.
4). Keep this wire as short as possible.
AX
Security and expansion modules (including the Remote
Remote IO Security Module Hardware Installation Guide
Wiring Overview
"Grounding" for details.
"Security I/O Wiring"
section on page 13.
page 14 for details.
AX
Security
Part Number 05DI-HISCRIO-22