24 Pamux User’s Guide
Table 2-1: B4 Address Jumpers
Base
Address
Jumper 4 Jumper 3 Jumper 2 Jumper 1
0 Out Out Out Out
4 Out Out Out In
8OutOutInOut
12 Out Out In In
16 Out In Out Out
20 Out In Out In
24 Out In In Out
28 Out In In In
32 In Out Out Out
36 In Out Out In
40 In Out In Out
44 In Out In In
48 In In Out Out
52 In In Out In
56 In In In Out
60 In In In In
Jumpers 5 and 6 (Watchdog)
A watchdog timer shuts down a process when the host computer goes off line. The watchdog timer on
the B4 depends on a periodic read or write strobe from the host processor. The individual B4 need not
be addressed. The absence of a strobe for a specified time activates the watchdog function.
Using jumpers 5 and 6, you can configure the B4 to trigger one of four actions upon a timeout.
Refer to Table 2-2.
Table 2-2: B4 Watchdog Jumpers
Watchdog Function Jumper 6 Jumper 5
No action In In
Activate relay channel 0 In Out
Deactivate all relay channels Out In
Activate relay channel 0
and deactivate relay channels 1-31
Out Out
SYSTEM SETUP
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