elmeg C46e Description And Installation page 25

2.2.4 External ISDN connection
The external ISDN connection is routed to an 8-pin RJ45 jack (Western jack)/
The four (4) middle terminal connections of the RJ45 jack are connected. Hard
wiring is not possible. You can also install the PABX elmeg C46e in the bus
system. For this, you can deactivate the terminators.
Terminators
deactivated
Terminators
activated
Fig. 7: elmeg C46e: External ISDN connection 2
Fig. 8: elmeg C48m /elmeg C88m: External ISDN connection 4
External ISDN connection
(S0 ext.)
S0 Ext.
1 2 3 4 5
a1 a2 b 2
n o c o n n ec ted
External ISDN connection 4
(S0 4 :EXT)
S03:EXT S04:EXT
1 2 3 4 5 6 7 8
a2 a1 b 1 b 2
n o c o n n ec ted
21
front view
6 7 8
b 1
Front view