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DAVIS Short-Range Modem Pair: Perception, GroWeather, EnviroMon., Monitor, Wizard User Manual

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Product Numbers: 7875

Davis Instruments Part Number: 7395-088
Short-Range Modem Pair
Rev. C Manual (7/7/99)

This product complies with the essential protection requirements of the EC EMC
Directive 89/336/EC.

© Davis Instruments Corp. 1998. All rights reserved.
VELCRO is a registered trademark of Velcro Industries, Manchester, NH.

19.Plug the second SR Modem into an available serial port on your PC.

C

ONNECTING

TO

S

ERIAL

P

ORT

Installing the SR Modem in the Multi-Purpose Shelter

Consult the Multi-Purpose Shelter manual for mounting instructions. You will
still need to use the manual supplied with the SR Modem itself for instructions
on connecting twisted-pair cable to the terminal blocks.

Using Surge Protectors with the Short-Range Modem Pair

The SR modems contain 600 Watt surge protectors. If the cable run between
modems is exposed to lightning-induced or other surges, you may want to add
additional surge protectors at one or both ends of the cable. Two Surge Protec-
tors (Davis Product # 7767) housed in a Small Surge Protector Shelter
(Davis Product #7768) are well-suited for this. If the cable is exposed, we sug-
gest the use of one pair of surge protectors where the cable enters the building
containing the computer.