Watlow CAS - Manual (Page 15)

Introduction
CAS User’s Guide 5
Miscellaneous Specifications
Serial Interface
Type: RS-232 3 wire or RS-485 4 wire.
Isolation:
RS-232 None
RS-485 To EIA RS-485 Specification.
Baud Rate: 2400 or 9600, user selectable.
Error Check: BCC or CRC, user selectable.
Number of Systems: 1 with RS-232 communications;
32 with RS-485 communications.
Protocol: Form of ANSI X3.28-1976.
System Power Requirements
Voltage: 12-24 Vdc
Input Current (no load): 300 mA max
Maximum Current Requirement: 610 mA. (If the reference voltage is
externally loaded, add 1 mA supply current for every 1 mA of load up to
a maximum load of 100 mA. If using the +5V logic supply to power
digital outputs, add 0.6 mA supply current for every 1 mA of load up to
a maximum load of 350 mA. Therefore, the maximum current
requirement is 300 +100 + (0.6 x 350) = 610 mA.)
Environmental Specifications
Storage Temperature: -20 to 60ºC
Operating Temperature: 0 to 40ºC
Humidity: 10 to 95% non-condensing.
Physical Dimensions
CAS: 1.75 lbs., 1.98" x 3.78" x 7.10" (.8 kg, 50 mm x 96 mm x 180
mm.)
TB-50: 3.2" x 3.4" (8.03 cm x 8.53 cm)