11
2�2 Block Diagram—Three Shelves and a Fan Tray (19" and 23")
CXCI+ Controller
Form C
contacts
SHELF 1 with CONTROLLER
Common RTN
OSP cable
+/-190V lines
RJ21-J2
RJ21-J1
-48V Input A
-48V Input B
Common RTN
-48V Input A
-48V Input B
RTN
-48B -48A
CAN
out
FAN
ALM
Fan tray
Fan
PWR in
SHELF 2 (not shown for clarity)
SHELF 3
FAN TRAY
Ethernet
Form C
contacts
Form C
contacts
CAN
in
-48A
VOUT
DC-DC
power modules
slots 1- 5 (19")
slots 1 - 6 (23")
RTN
VOUT
-48B
DC-DC
power modules
slots 6-9 (19")
slots 7-12 (23")
RTN
VOUT
-48B
DC-DC
power modules
slots 6-9 (19")
slots 7-12 (23")
RTN
-48A
VOUT
DC-DC
power modules
slots 1- 5 (19")
slots 1 - 6 (23")
RTN
OSP cable
+/-190V lines
RJ21-J2
RJ21-J1
Interface Board
S
he
lf I
D
-48B
-48A
M
A
JO
R
M
IN
O
R
CAN
out
CAN
in
RTN
Fan
PWR out
Interface Board
S
he
lf I
D
-48B
-48A
M
A
JO
R
M
IN
O
R
CAN
out
CAN
in
RTN
Fan
PWR out