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Chapter 6 Rear Panel Connectors
General
This chapter outlines the use of each of the rear panel controls and connectors. This chapter should be
used in conjunction with Chapter 5 and 7 for complete operating instructions.
Power Connector
The 3-prong power connector mounted on the rear panel of the product is for the application of AC
power to the unit. Refer to Chapter 2 for available voltages and safety precautions.
Fuseholder
This item is located internally on instruments manufactured with serial numbers lower than 8-3637.
This item is used to provide access to the main power fuse. Fuse values are listed below:
105VAC - 125VAC = ¼ amp slo-blo *
210VAC - 250VAC = .125 amp slo-blo *
*Fuse values are doubled if the IEEE, RS232C or Printer interface has been installed. Refer to rear-panel markings.
Replace blown fuses with their exact equivalent only!
BCD Interface
This connector is provided on units fitted with Option "BCD" and may be used to interface with the
Valhalla Model 1248 Comparator, or with other types of data acquisition equipment. The individual
pin functions of this connector are shown in Chapter 8.
Other Interfaces
The 4100 Series is available with a choice of three common interfaces for remote data acquisition.
These include GPIB (IEEE-488.2), RS232C, or a Centronics parallel printer interface. These interfaces
are for data acquisition only, and do not allow remote range control of the ohmmeter. If your ohmmeter
has been fitted with one of these optional interfaces, please refer to Chapter 12 for operating
instructions.
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