Aastra OpenCom 100 Mounting And Commissioning User Manual page 68

Aastra 677x: Extensions and Accessories
2
2
Underside of the device: key extension
(left) and system telephone (right)
1. Plug the key extension's RJ45 jack into the system telephone's RJ45 socket (1).
2. Screw the key extension onto the system telephone (2).
3. Plug the power supply unit's RJ45 jack into the socket provided on the right-
hand side of the key extension.
4. Pass the power supply unit's cable through the recesses provided on the
underside of the key extension and the system telephone.
5. Connect the power supply unit to the mains power supply.
6. Connect the system telephone with the U
66
1
2
1
2
This symbol on the system tele-
phone indicates the connector for the
key extension. It is on the underside of
the telephone. This symbol on the key
extension indicates the connector for a
further key extension.
This symbol on the key extension
indicates the connector for the power
supply unit and is on the underside of
the device. This is the same connector
which can be used instead of con-
necting an additional key extension.
or ethernet port.
pn
Key Extensions