PXL-500 Controller Installation Guidelines

PXL-500 Controller Installation Guidelines

When Installing Controllers


• If using modems for communication plan ahead to meet power and any telephone requirements for your system (1 phone line for the modem connected to the host computer and one for each master PXL-500/PXL-510 in each network)
• mount controllers in environmentally suitable areas - they require protection from weather and from temperature/ humidity extremes
• if not using a KPS power supply, mount the controller at least 3 feet away from the controller's power supply to prevent EMI radiated from the power supply from affecting the controller
• use the enclosure as a mounting template to mark drilling holes for permanent mounting
• consider mounting requirements - central versus distributed
- central mounting places all controllers in one location, running lengths of cables out to each door to support readers, inputs and outputs
- distributed mounting places each controller near the door it supports running short lengths of cable out to each door, but running a long network communication cable
• note the locations of the knockouts in the enclosures and remove the appropriate knockout for the easiest cable routing into the controller
• route all controllers in a network in a single, continuous daisy-chain
• route cables in accessible areas for ease of maintenance
• connect all controllers to a quality earth ground
• add transient suppression across electric devices attached to a controller output
• use an isolation relay (P/N IRP-1, or equivalent) if attaching to an elevator, a parking gate, a turnstile, or any application using a large electric motor
• verify the controller's supply voltage is 12 VDC – long power line runs cause a drop in voltage at the end of the run
• verify proper operation of the host computer's COM port
• for a single door application, install the reader to the TB-5, "A" reader connection
• attach the reader to be used for card enrollment to the master controller (this reader can be used for access control as well as enrollment, but during the enrollment process the door associated with the enrollment reader will not allow access until the enrollment process is complete)

1. The wire gauge to use should be determined by the current draw requirements of the Wiegand device and the actual length of the cable run. A +5 VDC and a +12 VDC Wiegand device must have a full +5 VDC or +12 VDC at the device (long cable runs have a voltage drop across the length of the run due to the resistance in the cable). To ensure proper voltage is available at the device a larger gauge of wire (having less resistance) or a power supply at the Wiegand device may be required.

2. Phone lines are only needed for remote communication between host computer and network using a modem.

3. Ground wire is green with or without yellow tracer.


• make modem phone line connections through PBX telephone switching systems - most modems are not compatible with PBX systems leading to disconnection problems with the modem
• locate the PXL-500/PXL-510 controller near EMI sources - EMI sources can affect the performance of the controller
• use switching power supplies - they are EMI sources
• route network and reader cables beside power cables - transients on the power cables may be picked-up by network and reader cables
• stretch or over-tension cables
• route over sharp objects
• let the wires get tangled
• route controllers in a network in a loop configuration
• connect earth ground1 to the network cable shield - the PXL-500/PXL-510 automatically connects earth ground to the shield at one point on the network to prevent ground loops
• use gender changer plugs when making RS-232 serial communication connections (unless you know it is a “straightthrough” plug) - gender changers may have internal wiring changes that can disrupt communications

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