Specifications

MACRO CPU Board
3U MACRO CPU Jumper and Switch Configurations 13
E5: MACRO Received Signal Detect/Bypass Mode (Rev -105 and 106 only). Does
not Exist on Rev 107 and Later Models
Rev -105
and Later
Location
Rev -104
and Earlier
Location
Jumper
Type
Description Default
B-3 3-Pin Jump pins 1 and 2 to access the receiver’s signal detect
operation.
Jump pins 2 and 3 to bypass the receiver’s signal detect
operation.
This jumper does not exist on MACRO-CPU versions -
104 and earlier.
Pin 1-2
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)
N
ot 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