Turbo PMAC2 Hardware Reference Manual
E19
: Watchdog Disable Jumper
E Point &
Physical Layout
Location Description
Default
E19
Jump pin 1 to 2 to disable
WATCHDOG timer (for test
purposes only).
Remove jumper to enable
WATCHDOG timer.
No jumper
installed
E20 – E22
: Power-Up/Reset Load Source
E Point &
Physical Layout
Location Description
Default
E20
E22
Remove jumper E20;
jump E21 pin 1 to 2;
jump E22 pin 2 to 3;
to read flash IC on power-up/reset.
Other combinations are for factory
use only; the board will not operate
in any other configuration.
No E20 jumper
installed;
E21 and E22
jump pin 1 to 2
E23
: Firmware Reload Enable
E Point &
Physical Layout
Location Description
Default
E23
Jump pin 1 to 2 to reload firmware
through serial or bus port.
Remove jumper for normal
operation.
No jumper
installed
E40
: Electrical/Optical Macro Input Select
E Point &
Physical Layout
Location Description
Default
E40
Jump E40 pin 1 to 2 to select
MACRO input from fiber optic
receiver.
Remove E40 jumper to select
MACRO input from electrical RJ45
receiver.
Jumper installed
(Option A)
No jumper
installed (Option
C)
E41, E42, E43
: Macro Signal Test Points (For Factory Use)
Jumper Description
7
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
