MRC-921 MicroBase User's Guide

Appendix
A
Specifications
Communication
Host interfaces
DB-9 serial port: Built-in one- or two-way 9-pin
RS-232 port, up to 38.4K bps
async
RJ-41 serial port: (Optional) Built-in one- or two-
way RJ-41 serial port
Electrical
Charging time
Fast charger: 4 hours
Trickle charger: 12 to 16 hours
MRC-921 input
voltage requirement: 12 VDC 800 mA
Environmental
Operating 50 to 110 degrees F
temperature: (10 to 43 degrees C)
Storage −20 to 140 degrees F
temperature: (−29 to 60 degrees C)
Relative humidity: 95% noncondensing
Physical
Capacity: One PTC-921 and one spare
battery pack
Length: 6.8 in/17.3 cm
Width: 5.2 in/13.2 cm
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