Installation - Black Box 232/CL-E Manual

RS-232 ↔ CURRENT LOOP INTERFACE CONVERTER
1. Remove the screw located at the
center of the bottom cover.
2. Remove the top cover.
3. Lift the back panel from its guide.
4. Insert the power supply receptacle
into the 4-prong plug (See Figure
7-1 on page 16. The 4-prong plug
is near W1). The receptacle
should be aligned so that the lip is
on the upward side. DO NOT
PLUG THE POWER SUPPLY
AC
INTO AN
5. Test your current loop for active
devices. See Section 4.1 on page
11.
6. Connect your current loop to the
CL050. See Section 4.2 on page
12.
10

3. Installation

OUTLET!
7. Insert the back panel into its
guide, making sure the power-
supply cable and current-loop
cable exit through the holes
provided for them.
8. Set switches SWA, SWB and SWC
to the desired positions. The
CL050 is shipped with SWA set to
Full-Duplex, Passive; SWB set to
20mA receive; 20mA transmit; and
SWC set to DTE. See Sections 4.3,
4.4, and 5.2, respectively, on pages
11 and 13 for more information
on these switches.
9. Replace the top cover.
10. Replace the screw.
11. Attach your RS-232C cable.
12. Plug the power supply into an AC
outlet. The CL050 is now ready
for operation.