OPTIONAL ITEMS
Depending upon your application, you are likely to find one or more of the following items useful with the
R4. All items can be purchased from our website
(www.sealevel.com)
or by calling our sales team at
(864) 843-4343.
DB9 Female to DB9 Male Extension Cable, 72” Length (Item# CA127)
The CA127 is a standard DB9F to DB9M serial extension
cable. Extend a DB9 cable or locate a piece of hardware
where it is needed with this six-foot (72-inch) cable. The
connectors are pinned one-to-one so the cable is
compatible with any device or cable with DB9
connectors. The cable is fully shielded against
interference and the connectors are molded to provide
strain relief. Dual metal thumbscrews secure the cable
connections and prevent accidental disconnection.
DB9 Female to DB25 Male Standard RS-232 Modem Cable, 72” Length
(Item# CA177)
The CA177 is a standard AT-style RS-232 modem cable
with a DB9 female connector on one end and a DB25
male connector on the other end. Simply connect the
DB9 female connector to the DB9 serial port on the R4,
and then connect the DB25 male connector to your
RS
232 serial modem or other compatible RS-232 serial
device. The six foot cable is fully shielded with dual
thumbscrews at each connector. The molded connectors
integrate strain relief to prevent damage to the cable or
connectors. All DB9 modem control signals are
implemented and the cable is pinned to EIA-232
standards.
Terminal Blocks
DB9 Female to 9 Screw Terminal Block (Item# TB05)
The TB05 terminal block breaks out a DB9 connector to
9 screw terminals to simplify field wiring of serial
connections. It is ideal for RS-422 and RS-485 networks,
yet it will work with any DB9 serial connection, including
RS-232. The TB05 includes holes for board or panel
mounting. The TB05 is designed to connect directly to
the R4 DB9 serial ports or any cable with a DB9M
connector.
©Sealevel Systems, Inc.
R4 Manual
7
SL9260 06/2015