© Nedap N.V. Nedap Readers Installation Guide Page 20 of 21So if using the Convexs/Invexs with e.g. RS485 it can be connected to AEOS version before 2.2.0 or 2.1.7. If theconfiguration of the Convexs/Invexs differs from default this configuration must be loaded using a configurationcard (using firmware APx003rs485NR)Remark: Check always the AEOS release notes for detailed information and the Know Problems in chapter 11.11. Known problems11.1. Convexs/Invexs to AP1002In case the Convexs/Invexs reader is connected to an AP1002 (both Nedap RF data and Nedap RF badge) thepotentiometer for the transmitter level must be set to minimum. Otherwise detection can be intermittend.11.2. Convexs/Invexs to Nedap readers with AM badgesIn case the Convexs/Invexs reader is connected to Nedap readers (e.g. AP4001 or AP1001) with output NedapRF badge the AM badges (A, B, C, D, G codes) will not be read on the Nedap reader. In this cases use as outputthe Nedap RF data.11.3. Convexs/Invexs to AP4003 using RS485Using rs485NR firmware: Connecting the Convexs/Invexs to the 4000 series using rs485NR can only to theAP4003X (and AP4803X), so not to AP4003 (or AP4803). The AP4x03X requires at least kernel 3.10 andcorresponding firmware. For the AP4x03 (with kernel version 2) connecting the Convexs/Invexs with RS485using the rs485NR firmware is NOT possible.This is solved with the rs485NR2 firmware. This firmware is suitable for both AP4x03 and APx03X (andAP1003, AP6003)Check always the version of firmware for the AEpu (see Remarks at chapter 10).11.4. Convexs/Invexs to AP4003 using RS485 Tamperswith / PINIf rs485NR is used, the Tamperswitch and PIN at the Convexs/Invexs is only available at the AP1003 withRS485, not at the AP4000 series.Advisable is to use the rs485NR2 protocol, supporting these features on AP4003 series.11.5. Convexs/Invexs to AP4x03X series before production code W2 using RS485The first series of AP4803X and AP4003X (Production codes before W2) will put this AEpack out of order afteruploading the Convexs/Invexs configurations and/or firmware to the Convexs/Invexs (or Nedap Readers), whenusing the RS485NR protocol.Solution for this is to replace this AEpacks. (These AEpacks can be used for other protocols without problems.)AP4x03X produced before June 2009 could sometimes have communication problems on the RS485 line. Due tothis the Convexs/Invexs can malfunction.11.6. Invexs with display / screenInvexs MNKS with display is only available on request, depending on the application to be used (whatinformation must be shown on the screen).