Appendix A
OIT Hardware Specifications
Mechanical
Material: Cast aluminum bezel sealed to NEMA 4/12 when panel mounted
Mounting: Panel
Wiring: Unit is field-wired by user to external power plug and D-style communications connectors
Weight: 2 pounds (0.90 kg)
Environmental
Operating Temp: +32 to +122°F (0 to +50°C)
Storage Temp: -4 to +158°F (-20 to +70°C)
Electric Noise Immunity
Emissions:
EN55011 (Group 1, Class B) — Generic commercial, light, and heavy industrial environments
EN50081-1 — Generic domestic and light industrial environments
EN50081-2 — Generic heavy industrial environment
Immunity:
EN50082-1 — Generic domestic and light industrial environments
EN50082-2 — Generic heavy industrial environment
Power Requirements
Input Voltage: 12 to 30 VDC
Power Usage: 2.5 watts typical
Display
Display Type: Backlit Liquid Crystal Display (LCD)—5 x 7 dot matrix with cursor
Display Character Size: 2 lines by 40 characters, 0.2 inches (5 mm) high
Display Viewing Angle: Approximately 120 degrees
LEDs: 24 for keypress and status on OIT3250 only
Keypad
Key Type: Membrane switch
Feedback: Internal buzzer (OIT3200/3250), open drain outputs for external keypress and alarm buzzers
(OIT3250 only), function key LEDs (OIT3250 only)
Layout: 31 keys, including 12 function keys arranged in 4 rows
Operational Life: Five million operations, minimum
Customizing: Custom keyboard graphics through use of user-installed inserts
Communications
Serial (PLC) Port 1: RS-232, RS-422, or RS-485
Serial (PC) Port 2: RS-232
Baud Rates: 300, 600, 1200, 2400, 4800, 9600, or 19.2k
Internal Features
Memory: 128K x 8 Flash PROM for firmware protocol and configuration data—no battery required
Clock: Internal displayable real-time clock (OIT3250 only)
Battery: 3V Lithium coin cell, 12 mm diameter (Ray-O-Vac BR1225 or equivalent)
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OIT3200/3250
1010-0081A, REV 04
