User guide

© Sealevel Systems, Inc.
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SeaLINK+16.VC User Manual
Optional RJ45 to DB9 RS-232 Adapter
Preconfigured for use with Sealevel 2161 and 2167 serial devices, the RJ45 to DB9
modular adapter (item# RJ9P-232) converts the RJ45 RS-232 pin out to a DB9 male
RS-232 serial port. Standard CAT5 patch cables can be used to extend the serial
port up to 50 feet away from the RJ45 port. The pin out for the RJ9P-232 is shown
below.
RS-485 Biasing and Termination
120Ω termination resistor always present
between Data+ and Data-
510Ω Biasing pull-up resistors on Data+
510Ω Biasing pull-down resistors on Data-