Aastra OpenCom 510 User Manual page 58

OpenPhone 71/73/75: Extensions and accessories for system telephonesKeypad extensions
4516001) to provide power. The power supply unit is plugged into the last in the
series of keypad extensions.
Configuration
U system telephone
pn
U system telephone with 1-3 keypad
pn
extensions
IP system telephone
IP system telephone with 1-3 keypad
extensions
IP system telephone with PoE (Power
over Ethernet)
IP system telephone with 1-3 keypad
extensions and PoE
Connecting the keypad extension
CAUTION!
Please note:
56
Guard against static charges!
Static charges can damage the OpenCom 510's electronic
components. Make sure you discharge yourself and your tools
before and during any installation work on the OpenCom 510
and any connected terminals. Use discharging underlays or
antistatic mats where possible.
Never attach a keypad extension to a system telephone that
is already connected to OpenCom 510. Pull the telephone
plug out of the socket before screwing the keypad extension
onto it.
Needs Power Supply
No
Yes
Yes
Yes
No
No