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About this Document and the UltraKey Lite
RS232, RS422/485 Serial Port
Note These ports are used to connect to MAXPRO-Net RS232 or RS422 and to
VideoBloX NetCPU, Standard CPU and Lite CPU RS422.
An isolated surge protection is suggested when using RS485/RS422 and when cabling
between buildings.
Note For MAXPRO net installations, COM1 (RS422) and COM2 (RS485) are
configured using the controller LCD menu and cannot be used at the same
time.
Note Serial port 1 can be either RS485 or RS422. Serial port 2 is only RS232.
Terminal Box
Use the terminal box RJ45 port and 8-pin terminal plug as required for compatibility and
connectivity options. It can be used to break out the RJ45 cable when wiring to existing
infrastructure is required.
Figure 1-2 Terminal Box Front and Back Ports
USB Port
The USB port is not used with VideoBloX or MAXPRO-net.
RJ45 EthernetRS232 DB9
Serial port
RS232 and RS422/485 8-pin
Terminal plug (pin numbers can
be assigned by user)