Power
-TD
-RD
-CD
-TD
-RD
-CD
Unit
A
Unit
B
Mini Driver MP
Card
ME778C-RJ45
MAIN MODULE
2W
B
4W
2W
A
4W
1 2 3
LO Z
B
HI Z
1 2 3
LO Z
A
HI Z
1 2 3 4
ON
SW A
1 2 3 4
ON
SW B
MAIN MODULE
(FRONT CARD)
ME778C-RJ45
JB2
JB4
JB7
JB6
JB5
1 2 3
1
2
3
1
2
3
1
2
3
1
2
3
MODEM A
MODEM B
MODEM A
MODEM B
Modem-to-
Modem Line
RS-232
Serial Line
INTERFACE MODULE
(REAR CARD)
Line: RJ-45
Line: RJ-45
Serial: 10-Pin RJ
Serial: 10-Pin RJ
INTERFACE
MODULE
(REAR CARD)
