Mack V-MAC IV, Руководство оператора

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72 V-MAC Co-Pilot Operator's Manual
Mi/h Output
This is a 50% duty cycle, 5-volt TTL-compatible, square-wave signal that is calibrated
to provide a standard pulse rate of 30,000 pulses per mile.
Note: TTL compatibility of this output may be affected by other devices connected to
this output. Maximum rated current of the TTL output is 10 mA. Total current draw of
all devices connected to this output must not exceed 10 mA at 4 volts.
SAE/ATA J-1708 Posts (Series Link A and B)
This is a serial communication interface. It conforms to the SAE/ATA J-1708
Recommended Practice for Serial Data Communications Between Microcomputer
Systems In Heavy Duty Vehicle Applications.
CB Radio Power Jack (CB Radio +) (Located on
Dashboard)
This is a +12 volt, switched battery power connection. It is used to power the vehicle's
CB radio. It is protected by a 15- amp circuit breaker and will supply power only
when the ignition key is in the ON position.
CB Radio Ground Jack (CB Radio −) (Located on
Dashboard)
This is a ground connection. It is used as a power return (−) connection for the
vehicle's CB radio.
See the following illustrations for the CTP and CXP electrical accessory connection
points for electrical equipment panels.
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