AMX AXB-REL8 User manual

instruction manual
AXlink Bus Controllers
AXB-REL8
Axcess Relay Controller

AMX Limited Warranty and Disclaimer
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Table of Contents
i
AXB-REL8 Axcess Relay Controller
Table of Contents
Product Information .................................................................................................1
Front and Rear Panels ...................................................................................................... 1
Specifications .................................................................................................................... 1
Connection and Wiring ............................................................................................3
Setting the DEVICE Dip Switch......................................................................................... 3
Wiring Requirements......................................................................................................... 3
Preparing captive wires............................................................................................................ 4
Wiring guidelines...................................................................................................................... 4
Connecting the Wiring ....................................................................................................... 4
AXlink data and power connections ......................................................................................... 5
Wiring AXlink with optional 12 VDC power supply ................................................................... 5
Checking the installation .......................................................................................................... 5
Relay connections.................................................................................................................... 5
Testing the installation ............................................................................................................. 6
Rack-Mounting the AXB-REL8 (optional).......................................................................... 6
System Worksheet and Installation Guide ....................................................................... 7

ii AXB-REL8 Axcess Relay Controller
Table of Contents

Product Information
1
AXB-REL8 Axcess Relay Controller
Product Information
The AXB-REL8 Relay Controller provides remote control for up to eight relay functions. Suitable
for stand-alone or rack mount applications, the AXB-REL8 may be used with AXCESS or
AXCENT systems via the four-wire AXlink data bus.
Front and Rear Panels
The front and rear panels of the AXB-REL8 are shown in FIG. 1.
Specifications
The following table details the specifications for the AXB-REL8 Axcess Relay Controller.
FIG. 1 AXB-REL8 front and rear views
Specifications
Dimensions (HWD) 1.51" x 5.55" x 5.45" (3.84 cm x 14.10 cm x 13.84 cm)
Enclosure Non-glare, high-impact black matte plastic
Power Consumption
Baseline draw
With all 8 relays On
• 90 mA @ 12 VDC (min)
• 170 mA @ 12 VDC (max)
Weight 17.50 oz. (496.11 g)
Included Accessories Metal tab strips included for external adjacent relay communing.
Optional Accessories AC-RK Accessory Rack Kit
DEVICE
AXlink
ON
AXlink
AXM
GND
PWR
AXP
B
21 345678
B
78
ABA
56
A
BB B
4
ABA
2
3
ABA
1
A
Device DIP
switch
AXlink LED
AXlink
connector
Relay contacts 5-8
(discrete commons)
Relay contacts 1-4
(shared commons)
Relay
LEDs (1-8)

Product Information
2AXB-REL8 Axcess Relay Controller
Specifications (Cont.)
Dimensions (HWD) 1.51" x 5.55" x 5.45" (3.84 cm x 14.10 cm x 13.84 cm)
Enclosure Non-glare, high-impact black matte plastic
Power Consumption
Baseline draw
With all 8 relays On
• 90 mA @ 12 VDC (min)
• 170 mA @ 12 VDC (max)
Front Panel Components
AXlink Status indicator AXlink LED (green and blinks to indicate AXlink communication activity and
power:
• Full-Off indicates no power is being received or the controller is not
functioning properly.
• One blink per second indicates power is active and AXlink communication is
functioning.
• Full-On indicates there is no AXlink control or activity, but power is On.
Device DIP switch An eight-position DIP switch is used to set the device number for the
AXB-REL8.
Relay LEDs 1-8 (Red) Illuminate when associated relay is closed. Relay LED's should match panel
control function.
Rear Panel Components
AXlink connector Four-pin captive wire receives power and information via the AXlink bus and
AXlink system controller.
Relay contacts Eight (normally -open) isolated two-pin relay contacts 1 A @ 28 VAC or VDC:
• Relays 1-4 can share a common if use jumper"A" pins with a tab strip
• Relays 5-8 use discrete commons (wire commons individually)

Connection and Wiring
3
AXB-REL8 Axcess Relay Controller
Connection and Wiring
Setting the DEVICE Dip Switch
The eight-position Device DIP switch is located on the front panel of the AXB-REL8 as shown in
FIG. 1 on page 1. Each device in the AXlink bus must have a unique AXlink device number.
The device can be 1 of the 255 devices in an Axcess, AXCENT, AXCENT2, or AXCENT3system.
The device number must match the device assignment in the Axcess program. AMX assigns device
numbers into the following three segments:
! Cards 1 through 95
! Boxes 96 through 127
! Panels 128 through 255
Set the device number by setting the DEVICE DIP switch. The device number is the total of all of
the switches in the ON (down) position. The following table shows the switch numbers and their
corresponding values.
As an example, the following DIP switch (FIG. 2) defines the AXB-REL8 as device number
97 (1 + 32 + 64 = 97).
Set the AXB-REL8 device number before connecting AXlink wiring. Do not install relay wiring at
this time.
Wiring Requirements
The AXB-REL8 uses a four-pin AXlink Central Controller connector for power and data. If the
distance between the AXB-REL8 and the Central Controller exceeds power consumption limits,
you must connect an optional 12 VDC power supply. Refer to the following section for more
information.
If you later change the device number, remove and reconnect the AXlink connector.
This enters the new device number into memory. The device number takes effect only
on power-up.
Device DIP switch settings
Position12345678
Value1248163264128
FIG. 2 Example device DIP switch with value of 97
ON
DEVICE
1 2 3 4 5 6 7 8

Connection and Wiring
4AXB-REL8 Axcess Relay Controller
Preparing captive wires
To connect the wiring into a captive-wire connector:
1. Strip 1/4 inch off the wire insulation for all four wires.
2. Tin 2/3 of the exposed wire.
3. Insert each wire into the appropriate captive-wire connector up to the insulation.
4. Tighten the captive screws to secure the fit in the connector.
Wiring guidelines
The AXB-REL8 requires 12 VDC power to operate properly. The Central Controller supplies
power via the AXlink cable. The maximum AXlink wiring distance between the Central Controller
and AXB-REL8 is determined by power consumption, supplied voltage, and the wire gauge used
for the cable. The following table lists wire sizes and the maximum lengths allowable between the
AXB-REL8 and the Central Controller, based on the maximum power consumption rating of 170
mA (all eight relays ON).
The maximum wiring lengths for using AXlink power are based on a minimum of 13.5 volts
available at the Central Controller's power supply.
If the AXB-REL8 is installed farther away from the control system than recommended in the above
table, connect a 12 VDC power supply to the AXlink connector on the AXB-REL8 rear panel (see
Wiring AXlink with Optional 12 VDC Power Supply).
Connecting the Wiring
The following paragraphs describe wiring connections for using the AXlink and relay connectors.
Do not connect power to the AXB-REL8 until the wiring is complete. If you are using a
12 VDC power supply, apply power to the AXB-REL8 only after installation is
complete.
Wiring Guidelines at 170 mA
Wire Size Maximum Wiring Length
18 AWG 690.42 feet (210.43 m)
20 AWG 436.80 feet (133.13 m)
22 AWG 272.33 feet (83.00 m)
24 AWG 171.66 feet (52.32 m)
If using power from AXlink, disconnect the wiring from the control system before
wiring the AXB-REL8.

Connection and Wiring
5
AXB-REL8 Axcess Relay Controller
AXlink data and power connections
Connect the control system's AXlink connector to the AXlink connector on the rear panel of the
AXB-REL8 for data and 12 VDC power as shown in FIG. 3.
Wiring AXlink with optional 12 VDC power supply
Connect the control system's AXlink connector to the AXlink connector on the rear panel of the
AXB-REL8 as shown in FIG. 4.
Use a 12 VDC power supply when the distance between the control system and AXB-REL8
exceeds the limits described in the Wiring Guidelines at 170 mA table on page 4, or the power
supply current capacity cannot accommodate the 170 ma (max) draw of the AXB-REL8. Make sure
to connect the GND and +12 VDC wire on the AXB-REL8 AXlink connector end. Do not connect
the optional +12 VDC power supply wire to the control system's power supply side of the AXlink
connector (FIG. 4).
Checking the installation
After set-up is complete:
1. Check continuity of relay wiring.
2. Check cable numbers and wiring, interfaces and sources against supplied documentation.
3. Install tab strips to jumper between shared commons and clip off excess tabs.
4. Insert relay wiring terminals into AXB-REL8.
Relay connections
The relay specification is 1 A @ VAC or VDC. FIG. 5 on page 6 shows the relay wiring diagram
for the AXB-REL8. The dotted lines are used to indicate commons. Install supplied tab strips to
jumper between shared commons. Clip off excess tabs and bend strip up, away from other wiring.
FIG. 3 AXlink wiring
FIG. 4 Wiring AXlink with Optional 12 VDC power supply
PWR +
AXP/TX
AXM/RX
GND -
PWR +
AXP/TX
AXM/RX
GND -
AXB-REL8 Central Controller
PWR (+)
GND (-)
Local +12 VDC power supply
(coming from the PSN power supply)
PWR +
AXP/TX
AXM/RX
GND -
PWR +
AXP/TX
AXM/RX
GND -
AXB-REL8 Central Controller

Connection and Wiring
6AXB-REL8 Axcess Relay Controller
Testing the installation
1. Check AXlink status LED - it should blink once per second (see Specifications table for
AXlink status LED).
2. Relay LED lights, but source does not activate:
3. Check wiring continuity.
4. Check jumpers used for shared commons.
5. Check cable and source against supplied documentation.
6. Check operational status of interface or source.
Rack-Mounting the AXB-REL8 (optional)
To rack-mount the AXB-REL8 into the optional AC-RK Accessory Rack Kit:
1. Remove any connected relay and AXlink connectors from the rear panel.
2. Remove the two screws on the front panel of the AXB-REL8.
3. Remove the front panel and the space bracket behind the panel.
4. Place the unit in the appropriate opening in the AC-RK.
5. Place the front panel of the AXB-REL8 on the front of the rack, over the unit.
6. Fasten the front panel to the rack and to the unit with the two screws you removed.
FIG. 5 Relay wiring diagram
4
3
2
1
B
B
A
A
B
A
B
A
6
5
B
A
B
A
8
7
B
A
B
A
RELAYS SHARING A COMMON
Jumper "A" pins with tab strip
RELAYS WITH DISCRETE COMMONS
Wire commons individually

Connection and Wiring
7
AXB-REL8 Axcess Relay Controller
System Worksheet and Installation Guide
AXB-REL8
Dealer ID#
Dealer PO#
Job SO#
Description Serial#
AXlink
AXM GND
PWR
AXP
BB
78
ABA
5
6
A
BB B
4
ABA
23
ABA
1
A
Wiring
4
3
2
1
B
B
A
A
B
A
B
A
6
5
B
A
B
A
Function Color/Pin
8
7
B
A
B
A
AMX Cable/Infc # SourceDevice #

AMX reserves the right to alter specifications without notice at any time.
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032-004-1021 6/02 ©2002 AMX Corporation. All rights reserved. AMX, the AMX logo, the building icon, the home icon, and the light bulb icon are all trademarks of AMX Corporation.
AMX reserves the right to alter specifications without notice at any time. *In Canada doing business as Panja Inc.