Assessments - 1, GPA: 3
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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. The device can be 1 of the 255 devices in an Axcess, AXCENT, AXCENT2, or AXCENT3 system. 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. Device DIP switch settings Position 1 2 3 4 5 6 7 8 Value 1 2 4 8 16 32 64 128 As an example, the following DIP switch (FIG. 2) defines the AXB-REL8 as device number 97 (1 + 32 + 64 = 97). DEVICE ON 1 2 3 4 5 6 78 FIG. 2 Example device DIP switch with value of 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. AXB-REL8 Axcess Relay Controller Connection and Wiring 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. 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. 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 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. If using power from AXlink, disconnect the wiring from the control system before wiring the AXB-REL8. AXB-REL8 Axcess Relay Controller Connection and Wiring 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. PWR + AXP/TX AXM/RX GND PWR + AXP/TX AXM/RX GND AXB-REL8 Central Controller FIG. 3 AXlink wiring 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. PWR + AXP/TX AXM/RX GND PWR (+) GND (-) Local +12 VDC power supply (coming from the PSN power supply) PWR + AXP/TX AXM/RX GND - AXB-REL8 Central Controller FIG. 4 Wiring AXlink with Optional 12 VDC power supply 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. AXB-...