Paxton Net2 plus control unit - Manual (Page 6)

Page 6
1 - RS485 Data line resistance check - ACU not responding or fails to be detected.
Q First power down any data line converters and disconnect any ACU's that do not have a flashing OK LED. Using a
Q Multimeter, measure the resistance across the White/Green and Green pair at one end of the network.
Q A resistance of between 60 and 80 ohms is required. Repeat the test for the White/Orange and Orange pair.
Q This is vital for a stable and trouble free installation.
2 - ACU Reset - No OK LED flashing.
Q The ACU has no factory reset condition as it does not contain any fixed settings. The unit does have an operating
Q program (firmware) that controls its functions and can be confirmed as running by means of the flashing OK LED.
Q - If the OK LED is flashing steadily, then there should be no reason to reset the unit.
Q - If the OK LED is not flashing, you need to clear the unit so that it can receive a firmware download from the PC.
Q Any other ACU's without OK LED's must be taken off the line or powered down.
Q 1. Stop Net2 Server (Net2 server icon - Bottom right of screen - Right mouse click, Select Stop the Net2 Server).
Q 2. Power down the Net2 ACU.
Q 3. Insert a link wire between the Orange and Mauve terminals on reader 2 port.
Q 4. Power up the ACU. - The OK LED flashes very quickly.
Q 5. With the unit still powered, remove the link.
Q 6. Go to the PC and Start the Net2 Server and go into the Doors screen. Click on the Detect button. This
Q should look for the ACU and then download its firmware (This may take up to 5 minutes). - The OK LED
Q should now be flashing with a steady heartbeat. This procedure must only be done for one ACU at a time.
Q NOTE: If this unit is using the TCP/IP interface, any fixed IP settings will be retained.
Q If the unit is in DHCP mode it will need to be detected at each stage using the Net2 Server Config Utility
Q as a new address may be issued by the IP server, each time the PCB resets.
3 - Can we use a DHCP IP address?
Q The Ethernet interface does support DHCP, but for more reliable communication, a static IP address must be
Q reserved for the unit. This is because some servers issue different DHCP addresses each time they are restarted
Q and this requires the Net2 interface to be manually set up again - a time consuming process.
4 - TCP/IP - Direct PC connection.
Q Connect the network interface directly to the LAN port of the PC. Without the presence of a DHCP server the unit
Q will default to an IP address in the range 169.254.X.X.
Q Check the IP address of the network card of your PC by typing IPCONFIG at the command prompt. Detect the
Q TCP/IP interface with the Net2 Server Configuration Utility and change the IP address to an address
Q similar to that of your machine. For example, if the IP address of the PC is 192.168.10.7, change the IP address
Q of the TCP/IP interface to 192.168.10.8. Once the IP address of the interface has been changed into the range of
Q the PC then Net2 will be able to communicate with it.
Q NOTE: Do not change the IP address of your PC to 169.254.x.x, this will not allow the IP address of the TCP/IP
Q interface to be fixed correctly.
5 - Cannot detect ACU via a TCP/IP interface.
Q 1. The TCP/IP interface must be listed in the Net2 Server Configuration Utility, and responds when PINGed
Q from the utility. A static IP address must be used for the interface.
Q 2. If the interface is responding, try a loopback test. (see Loopback section)
Q 3. The Net2 data line should be checked for resistance readings.
6 - Readers/Keypads not working.
Q - Software settings - Confirm that the settings of the reader or keypad are correct.
Q - Connections - Check the wiring and integrity of the connectors. - If possible, test this reader on the other port.
Q - Cable - Belden 9540 should be used to extend the reader cable (100 m maximum). Twisted pair alarm cable
Q should not be used. To confirm that a cable extension is not at fault, wire the reader direct into the reader port.
Q - Supply voltage - Confirm that the voltage is within specification. (see table)
Q - User token - Confirm that the user token used for testing is OK by presenting it to a known working reader.
Q - Interference - Confirm whether the reader works when tested 'in hand' and not mounted on the wall. Ensure
Q that readers are not mounted back to back or there is no interference from other local RF devices.
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