System information
Jumper Block Locations
20 – Reference VSBC-6 Reference Manual
J
UMPER
S
UMMARY
Table 2: Jumper Summary
Jumper
Block Description
As
Shipped Page
V1
COM3 Configuration
RS-485 RS-485
RS-232 RS-422 Endpoint Station Intermediate Station
RS-232 29
V2
Counter/Timer 4 Clock Source
External Input 6 MHz
Note! Only ½ of jumper block V2 is shown in this picture.
6 MHz 50
V2
Counter/Timer 5 Clock Source
6 MHz CTC#4 External Input
Note! Only ½ of jumper block V2 is shown in this picture.
6 MHz 50
V3
COM4 Configuration
RS-485 RS-485
RS-232 RS-422 Endpoint Station Intermediate Station
Note! Jumper V3 is shown in the vertical orientation. On the VSBC-6 circuit
board, the jumper block is oriented horizontally.
RS-232 29
V4
CMOS RAM and Real Time Clock Erase
Normal
Erase Operation
Note! Do not operate the board with the jumper in the erase position. Leave the
jumper in position V4[1-2] for at least one full minute to fully erase CMOS RAM.
Normal 27
V5[1-2]
CMOS Battery Test Terminals
Note! V5 is not a jumper, it is used as a quality control test point to measure the
current flowing in the battery circuit.
Out —