Overview
The AL-PWS-DALI is a DALI enabled POE (Power Over Ethernet) wall switch with a single dimmable LED driver output. The switch can drive up to 28 watts of LEDs at a max voltage of 48v. A simple push button gives the user the ability to turn on or off the LEDs and full dimming control from 100% to 1%.
The switch has a simple push button input. This controls the on-board LED drivers and also sends DALI Group commands to other DALI devices on the bus. See the manual for more information on DALI commands. The functioning of the small indicator LED on the face of the switch can be changed by sending commands on the DALI bus.
The AL-PWS-DR1 uses a long press of the switch to dim and brighten the lights. The response time to the attached LEDs is fast, the response time to DALI bus attached devices is delayed by 30 ms or more. The dim or brighten functionality will dim first and the alternate brighten and dimming after each long press.
The output dim level and On/Off status is controlled by either the switch or by DALI commands. If the AL-PWS-DR1 is configured for a group, then DALI commands to that group will control the LEDs attached. The switch will also respond to broadcast commands and to short address commands to it's short address.
POE Connections
The RJ45 connector uses the PoE Mode-B. This allows for two power conductors, three ground lines, two DALI connections, and an N-WAY output for multi switch control. There are two identical RJ45 connectors on the switch. This allows multiple switches to be daisy chained together or to connect another switch for N-WAY operation.
A standard passive Mode B POE injector will power the switch - it will feed the DALI bus thru on pins 1 and 6 to a DALI bus power supply - pay attention to the polarity.
NOTE: DO NOT USE T568A / B crossover cables.
| Pin Number | Color T568B
| Function |
| 1 | Orange and White | DALI + |
| 2 | Orange
| DALI + (NC)
|
| 3 | Green and White | N-WAY |
| 4 | Blue | + 48v |
| 5 | Blue and White | + 48v |
| 6 | Green
| Ground
|
| 7 | Brown and White | Ground |
| 8 | Brown | Ground |
Because of the plastic casing there is no risk of a charge buildup on the plate so no ground wire is needed.
The N-WAY operation of the switch allows other switches to control the LEDs driven by the switch. To connect a simple toggle switch, use a RJ45 connector to a simple toggle or RJ-253 type momentary switch. The toggle or RH253 switch should use only the Green / Green white wire pair.
The low voltage wiring code limits maximum wattage on the CAT5 wire to 50 watts. However, that does not mean that each switch needs its own home run from the switch to the power panel. There are two inputs on the switch so multiple switches can be daisy chained together. Simply add up the wattage of each fixture on a daisy chain and keep it under approximately 48 watts.
For rough in the switch needs a housing, typically a gang box. Because the switch uses the POE architecture each gang box has a CAT5 home run input, possibly via another gang box, and a CAT5 output if connected to another switch. There also needs a line of 18/2 AWG running from the the switch to the lights. Each wire should have 6-8 inches in the box for trim. Once all the wires have been run they should be curled inside the box to protect them during sheetrock.
The CAT5 wires can now be terminated with an RJ45 connector and each conductor in the 18/2 wire should be stripped to a quarter of an inch. The RJ45 coming into the box from the main panel should connect to the first switch. Small CAT5 wire runs with RJ45 terminations on either end can be used to connect multiple switches in the same box.
In the main panel, the RJ45 connectors should be terminated into a simple POE injector for basic functionality or into an ATX-LED POE DALI injector for fully DALI control.
A broadcast command sent out on the DALI bus should turn on or off all of the lights connected to AL-PWS-DR1 switches. Use a AL-WS-010v in broadcast mode for power up testing.
RJ45 crimper
RJ45 male headers
Screwdriver
Wire strippers
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Click here for the complete AL-PWS-DR1 manual