Campbell Scientific SC932 User Manual
SC932 9-PIN TO RS-232-DCE INTERFACE
INSTRUCTION MANUAL
REVISION: 4/03
COPYRIGHT (c) 1987-2003 CAMPBELL SCIENTIFIC, INC.
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Warranty and Assistance
The SC932 9 PIN TO RS-232-DCE INTERFACE is warranted by
CAMPBELL SCIENTIFIC, INC. to be free from defects in materials and
workmanship under normal use and service for twelve (12) months from date of
shipment unless specified otherwise. Batteries have no warranty. CAMPBELL
SCIENTIFIC, INC.'s obligation under this warranty is limited to repairing or
replacing (at CAMPBELL SCIENTIFIC, INC.'s option) defective products.
The customer shall assume all costs of removing, reinstalling, and shipping
defective products to CAMPBELL SCIENTIFIC, INC. CAMPBELL
SCIENTIFIC, INC. will return such products by surface carrier prepaid. This
warranty shall not apply to any CAMPBELL SCIENTIFIC, INC. products
which have been subjected to modification, misuse, neglect, accidents of
nature, or shipping damage. This warranty is in lieu of all other warranties,
expressed or implied, including warranties of merchantability or fitness for a
particular purpose. CAMPBELL SCIENTIFIC, INC. is not liable for special,
indirect, incidental, or consequential damages.
Products may not be returned without prior authorization. To obtain a
Returned Materials Authorization (RMA), contact CAMPBELL SCIENTIFIC,
INC., phone (435) 753-2342. After an applications engineer determines the
nature of the problem, an RMA number will be issued. Please write this
number clearly on the outside of the shipping container. CAMPBELL
SCIENTIFIC's shipping address is:
CAMPBELL SCIENTIFIC, INC.
RMA#_____
815 West 1800 North
Logan, Utah 84321-1784
CAMPBELL SCIENTIFIC, INC. does not accept collect calls.
Non-warranty products returned for repair should be accompanied by a
purchase order to cover the repair.
815 W. 1800 N.
Logan, UT 84321-1784
USA
Phone (435) 753-2342
FAX (435) 750-9540
www.campbellsci.com
Campbell Scientific Canada Corp.
11564 -149th Street
Edmonton, Alberta T5M 1W7
CANADA
Phone (780) 454-2505
FAX (780) 454-2655
Campbell Scientific Ltd.
Campbell Park
80 Hathern Road
Shepshed, Loughborough
LE12 9GX, U.K.
Phone +44 (0) 1509 601141
FAX +44 (0) 1509 601091
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SC932 9-Pin to RS-232-DCE Interface
FIGURE 1. SC932 9-Pin to RS-232-DCE Interface
1. General Description
The SC932 (Figure 1) is used to interface a CSI datalogger to any modem that
is configured with an RS-232 DCE (Data Communications Equipment) serial
port. Features include:
• True RS-232 signal levels.
• Power for the SC932 is supplied from the 5 V supply on pin 1 of the
datalogger’s I/O port. The SC932 will use the 5 V supply to power the
RS-232 modem if needed.
• Power usage is jumper configurable for certain hardware configurations.
• Jumper selectable for two way (interactive) communication, one way
(output or printer) communication, or both.
The SC932 is most frequently used with a short haul modem to communicate
across a dedicated line made of 2 pairs of twisted wire with a shield. Section 3
describes the details of this application using a short haul modem built by RAD.
The SC932 is also commonly used with the satellite transmitters and spread
spectrum radios.
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