Fluke 943-227-15, 943-27 - page 18

943-227-15 Digital Preamplifier
Operator Manual
2-6
Table 2-8. 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 2-9. 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