Keri Systems PXL-510 - Manual (Page 13)

PXL-500 / PXL-510 Tiger Controller
Quick Start Guide
Page 13 of 24 P/N: 01918-001 Rev. B
4.12 Communication Between the Access Control Network and Host Computer
Communication between the access control network and the host computer may be made via one of three ways.
• A direct connect cable between master controller and host computer via the RS-232 serial port (see Section 4.12.1).
• Two modems making a remote connection between the master controller and host computer via the RS-232 serial
port (see Section 4.12.2 on page 15 and Section 4.12.3 on page 16).
• Use of a LAN-50 or LAN-500 Universal Device Server to provide LAN/WAN Ethernet connectivity between Doors
and one or more PXL networks. The LAN-50 makes use of the RS-232 serial port while the LAN-500 uses TB13 (see
Figure 1 on page 1). For information on using a LAN-50 or LAN-500 Universal Device Server refer to the LAN-50/
LAN-500 Ethernet Communication Application Note (P/N 01881-003).
NOTE: When using a LAN-500 for ethernet communication, the jumpers across JP6 and JP7 must be removed for
communication. For all other forms of communication, including use of a LAN-50, the jumpers must be placed across
JP6 and JP7.
NOTE: Do not use male/female gender changer plugs or 25-pin to 9-pin adapters when making RS-232 serial port
connections. These devices may have internal wiring changes that can disrupt communications when implemented in
conjunction with the Keri Systems serial wiring instructions. If you must use a gender changer plug, ensure it is a
“straight-through” plug.
NOTE: Keri Systems requires using modems from the same manufacturer at both the host computer and the access control
network. This eliminates the possibility of incompatibilities between modems from two different manufacturers from
affecting the communication between access control network and host computer. Keri Systems cannot be held responsible
for problems caused by incompatibilities between modems from two different manufacturers.
NOTE: When using 56K modems to communicate with remote access control networks, all modems must use the same
communication format - either X2 or Flex. Incompatibilities between the two formats make some modems of one format
incapable of reliable communication with modems of the competing format. Modems using the V.90 specification are
compatible regardless of whether they are from an X2 or Flex manufacturer.