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218 MAINTENANCE AND LUBRICATION
Tachometer (RPM) Output
This terminal is to be used for devices requiring information for engine speed signals. (See
the Warning and Note above.)
WARNING
The tachometer output, speedometer
output, and serial links A and B are for
specific hookups. These terminals should
be used only for their specified purposes
and connection to these terminals should be
done only by a qualified service technician.
Note:
The tachometer output and
speedometer output are 50% duty cycle,
Transistor-Transistor Logic (TTL)
compatible, square wave signals that are
calibrated to provide a standard pulse rate
of 12 pulses per engine revolution for the
tachometer output and 18,645 pulses per
kilometer for the speedometer output. TTL
compatibility of these outputs may be affected
by other devices connected to these outputs.
Speedometer (KPH) Output
This terminal is to be used for devices requiring information for vehicle speed signals.
(See the Warning and Note below).
SAE/ATA J1708 Posts (Serial Links A and B)
This is a serial communication interface. It conforms to the SAE/ATA J1708 Recommended
Practice for Serial Data Communications Between Microcomputer Systems in Heavy-Duty
Vehicle Applications. (See the Warning above.)
Summary of Contents for CHM 2010
Page 2: ......
Page 8: ......
Page 25: ...SAFETY INFORMATION 17 Advisory Label Locations On Vehicle Labels Found on Chassis C0032631...
Page 26: ...18 SAFETY INFORMATION W8061742...
Page 27: ...SAFETY INFORMATION 19 C0032633...
Page 28: ...20 SAFETY INFORMATION W8061397...
Page 29: ...SAFETY INFORMATION 21 Labels Found on Driver Side Sun Visor W8061402...
Page 35: ...SAFETY INFORMATION 27 C0032643...
Page 37: ...SAFETY INFORMATION 29 C0032645...
Page 47: ...INSTRUMENTS AND CONTROLS 39 INSTRUMENT PANEL GAUGE LAYOUT C0032654...
Page 76: ...68 INSTRUMENTS AND CONTROLS C0032684...
Page 107: ...OPERATION 99 W4059732 Control Switch W4059733 Mode Switch...
Page 160: ...152 OPERATION C0032897...
Page 166: ...158 OPERATION C0032898...
Page 192: ...184 Mack Emissions Solution W8056653...
Page 207: ...MAINTENANCE AND LUBRICATION 199 C0032899 C0032900 1 Towhook Access...
Page 218: ...210 MAINTENANCE AND LUBRICATION ELECTRICAL Circuit Breaker and Relay Panels C0032908...
Page 232: ......