Distech Controls EC-BOS-9 Quick Start Manual page 4

Mounting On DIN Rail, see images
Pull the controller's locking clip down.
1
Tilt the controller to hook over the DIN rail.
2
Push down and in on the unit to fasten to the rail.
3
Push the locking clip up to secure.
4
Mount any option module onto the DIN rail in the same way. Slide
5
the module firmly into the controller's connector to seat.
Repeat for other modules as needed (4 maximum).
6
Carefully secure both ends of the final assembly with DIN rail end-
7
clips provided by the DIN rail vendor.
Wiring
Power and Field Communications Ports, image
Power and field communications ports are as follows:
Ground
1
Power
2
RS485 ports and bias switches
3
Ethernet port (Sec), 10/100/1000-Mbit, RJ-45
4
Ethernet port (Pri), 10/100/1000-Mbit, RJ-45
5
RS485 Wiring, see image
5
On the controller's top side, two RS485 ports operate as COM1
and COM2. Each port is capable of up to 115,200 baud, and uses a
3-position, screw terminal connector.
NOTE: IO modules, Security modules, and Smartkeys all need to be
on an RS-485 network.
Use shielded, twisted-pair, 18-22 AWG cabling to wire in a continuous
multidrop fashion to other RS485 devices: "minus to minus", "plus to
plus, " and "shield to shield. "
Connect the shield wire to earth ground at one end only. Image
shows example wiring.
RS485 port A (COM1) is often used to support a trunk of T-IO-16-
1
485 modules. NOTE: Do not mix T-IO-16-485s with other types of
RS485 devices on the same RS485 trunk.
RS485 port B (COM2) supports a network of field devices using
2
RS485 communication. Additional RS485 COM ports (COM3+)
may be added, with port numbering dependent on devices added to
each unique system. For example, an Enterprise Security network
includes the following:
– Access network (COM2 default)
– Smartkey, intrusion keypad (COM3 default)
– NRIO network
NOTE: RS485 devices on the same network should use the same
3
protocol and baud rate. Up to 32 or more devices may be supported,
depending on device specifications.
RS485 bias switches
Each RS485 port has an adjacent 3-position biasing switch. Settings of
each RS485 bias switch are:
• BIA - (middle, as-shipped setting) RS485 biasing. 2.7K bias resistors
with no termination resistor.
• END - RS485 biasing and a termination: 562 Ohm bias resistors and
150 Ohm termination resistor.
• MID - RS485 biasing or termination: 47.5K bias resistors with no
termination resistor.
Often, adding RS-485 biasing can improve communications by
eliminating indeterminate idle states.
4
,
2 3
4
See EC-BOS-9 Mounting and Wiring Guide for more details on RS485
biasing. Each RS485 port has two LEDs. See the "Status LEDs" section
for more information.
Ethernet Wiring, see image
Two RJ-45 10/100/1000-Mbit Ethernet connectors are labeled PRI
(LAN1) for primary, and SEC (LAN2) for secondary. Use a standard
Ethernet patch cable to an Ethernet switch.
The factory-default IP address for PRI is 192.168.1.140. The default
subnet mask is 255.255.255.0. By default, the SEC (LAN2) port is
disabled.
Refer to the EC-BOS-9 Install and Startup Guide for details on the
software configuration of the Ethernet ports.
Earth Ground & Power
Earth grounding provides protection from electrostatic discharge or
other forms of EMI.
NOTE: Depending on power source used (image
(AC): Dedicated 24V transformer required, with neither side of the
2.1
transformer secondary tied to ground.
(DC): Polarity is unimportant (uses onboard diode bridge), with
2.2
neither leg tied to ground.
(Wall-mount AC adapter) instead of wiring 24V to 2-position
2.3
connector.
Wiring Earth Ground & Power, see image
Warning: Before making power terminations, de-energize the
24V power source. Do not restore power until completing all other
mounting and wiring. See "Power up and initial checkout".
Prerequiste: A nearby earth grounding point.
Install the included earth ground wire to the controller's earth
1
ground spade lug, and terminate the other end to a nearby earth
ground.
5
Unplug the controller's 2-position power connector plug and
2
terminate the 24V supply source (AC or DC) to the connector.
Leave connector unplugged for now.
Power Up and Initial Checkout
Apply power by doing one of the following:
• Insert the 2-position 24V power connector plug, or
• Insert the barrel plug of the wall-mount AC adapter.
Check the "BEAT" (Heart- beat) LED.
After power is applied, during bootup, the "BEAT" LED flashes at
a 1 Hz rate, at 50%/50% on/off duty cycle. The bootup process will
complete approximately 30 seconds after the start of flashing "BEAT"
LED.
Status LEDs , see image
The controller provides a number of status LEDs, with all but one
visible with the front access door closed.
RS485 "A" (COM1): Transmit (TX, Yellow) and Receive (RX,
1
Green).
RS485 "B" (COM2): Transmit (TX, Yellow) and Receive (RX,
2
Green).
STAT (Green) - Remains illuminated while controller is powered.
3
BEAT (Yellow) - "Heartbeat", normally 1Hz, 50% duty cycle.
4
Secondary Ethernet, SEC (LAN2) "Link" (Green) and "Activity"
5
(Yellow).
4
6
6
7
).