Specifications

MACRO CPU Board Hardware Reference Manual
Jumper and Switch Configurations 11
E40: MACRO Input (Fiber/Wired) Selector
Rev –105 and
Later Location
Rev –104 and
Earlier Location
Jumper
Type
Description Default
B-3 C-3 2-Pin Remove jumper to select MACRO wired
(RJ45) input from J14.
Jump pins 1 and 2 to select MACRO fiber
optic input from U73.
Jumpered
(Option A)
Not jumpered
(Option C)
JP3: MACRO Loop Back Test Select for Copper only (Rev -104 and Earlier)
Rev –105 and
Later Location
Rev –104 and
Earlier Location
Jumper
Type
Description Default
B-1 2-Pin Remove jumper to select loop back in the
copper interface of MACRO communications
(for test purposes only).
Jump pins 1 and 2 for normal copper MACRO
communications.
This jumper does not exist on MACRO-CPU
versions 105 and greater.
Pin 1-2
JP4: Reserved for Future Use
JP5-JP6: MACRO Copper EQ Select (Rev -104 and Earlier)
Rev –105 and
Later Location
Rev –104 and
Earlier Location
Jumper
Type
Description Default
B-1 2-Pin These jumpers are used to select different
modes of equalization when copper-based
communications are used.
When not jumpered, adaptive equalization is
used. JP5 and JP6 are used for manufacturer's
testing only.
These jumpers do not exist on MACRO-CPU
versions - 105 and greater.
Not jumpered