Appendix C–4
ELECTRICAL SPECIFICATIONS
Model 4730 Model 4731
Power sources 120 V ac 208–240 V ac
50/60 Hz 50/60 Hz
Single phase Single phase
Peak power consumption 1265 VA 2496/3120 VA
Current 11 A 12/13 A
Plug NEMA NEMA
5-15P 6-20P
Length of power cord 2 m (6.6 ft) 1.8 m (6 ft)
Liquid crystal display 4 line x 20 character
Keypad 25-key sealed membrane
RS-232C configuration Data Terminal Equipment (DTE)
Serial data format 8 Data bits
2 Stop bits
No parity
Baud rate range 600 to 9600 baud
Maximum length of 3 m (10 ft)
serial cable
Oven to PC-Compatible Computer Cable:
9-pin FEMALE
9-pin FEMALE
Rx (pin 2)..................... Tx (pin 3)
Tx (pin 3)..................... Rx (pin 2)
DTR (pin 4).................. DSR (pin 6)
DSR (pin 6).................. DTR (pin 4)
RTS (pin 7) .................. CTS (pin 8)
CTS (pin 8) .................. RTS (pin 7)
GND (pin 5)................. GND (pin 5)
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