Aastra OpenCom 130 User Guide - Page 68
further key extension., extension indicates the connector for
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Aastra 677x: Extensions and Accessories Key Extensions 1 2 2 This symbol on the system telephone indicates the connector for the key extension. It is on the underside of 1 the telephone. This symbol on the key extension indicates the connector for a further key extension. 2 2 Underside of the device: key extension (left) and system telephone (right) 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 connecting an additional key extension. 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 righthand 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 Upn or ethernet port. 66