Fluke 943-27, 943-227-15 manual Configuration Functions, Firmware Version, Deleted, Not Used

943-227-15 Digital Preamplifier

Operator Manual

For UDR systems, the address of the 942-200-80 Communications board in the UDR must be set 4040 and the baud rate must be set to 4800 baud. If the wiring of the Communications option board to the P2 connector is suspected, a loop test can be performed as described in "Loop Test Mode". The instruction manual for the Communications option board (P/N 942-200-80-1) contains information on how to set up the serial board in the UDR.

Firmware Version

This system requires a PROM for operation. For the part number and the latest revision of the PROM, see the Factory Test Data Sheet. This Manual has been prepared for use with the P/N 227LNK, Rev. 2, PROM.

3.4 Configuration Functions

The preamplifier configuration jumpers and required settings for this application are listed below:

Table 3-2. Preamplifier Serial Interface Board 977-210-10M Switch Settings

Switch	Normal	Switch Function
	Op.
SW1	Open	Microprocessor Reset switch, momentary contact
SW2	N/A	Not supplied
SW3-1	ON	OFF Selects 300 baud • 1/ON Selects 4800 baud (normal setting)
SW3-2	OFF	OFF • (No function is implemented in the 977-210-10M)
SW3-3	OFF	OFF Selects Rate Mode (normal) • (Selects Maintenance Mode for
		factory PGA and Auto Zero set-up only)
SW3-4	OFF	OFF • (No function is implemented in the 977-210-10M)

NOTE

SW3 is a 4-position DIP switch on the 977-210-10M serial interface board.

Table 3-3. Jumper Positions for Preamplifier Serial Interface Board 977-210-10M

Jumper	Normal	Function	Alternate	Function
	Setting		Setting
JMP1	A to B	Enables Victoreen Loop	B to C	Enables RS232C
		(normal)
JMP2	N/A	Deleted, Not Used	N/A	Deleted, Not Used
Table 3-4. Jumper Positions for Preamplifier Electrometer Board 977-200-15M
Jumper	Normal	Function	Cal.	Function
	Setting		Position
JMP1	A to B	Normal Operation	B to C	PGA Offset Adjust *

* Programmable Gain Amplifier requires a special test PROM and is a factory adjustment

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