Fluke 943-227-15 - Manual (Page 8)

943-227-15 Digital Preamplifier
Operator Manual
1-4
Table 1-3. Preamplifier Serial Interface Board 977-210-10M Switch Settings
Switch Normal
Op.
Switch Function
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 1-4. Jumper Positions for Preamplifier Serial Interface Board 977-210-10M
Jumper Normal Setting Function Alternate Setting Function
JMP1 A to B Enables Victoreen Loop
(normal)
B to C Enables RS232C
JMP2 N/A Deleted, Not Used N/A Deleted, Not Used
Table 1-5. Jumper Positions for Preamplifier Electrometer Board 977-200-15M
Jumper Normal Setting Function Cal. Position Function
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