NEC ELECTRA ELITE IPK II, System Hardware Manual, Page: 445 / 642

Electra Elite IPK II Document Revision 3
System Hardware Manual 9 - 39
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3.8.2 Switch Settings
Refer to the following table.
3.8.3 LAN/PSTN Selection Switch Operation
When power is active, the user can manually select either a Local
Area Network (LAN) or Public Switched Telephone Network (PSTN)
communication path using this switch. When power failure occurs, a
LAN path is automatically changed to PSTN. Refer to
Table 9-7
Selection Switch in LAN .
When selection switch is in PSTN, the communication path is always
connected to PSTN. Refer to
Table 9-8 Selection Switch in PSTN .
Table 9-6 PS(A)-R Unit Switch Settings
Switch Position 1 Position 2
LAN/PSTN Selection Switch Out – LAN In – PSTN
SW3: Mode Dial Pulse DTMF
SW1: Pulse Rate 20 pps 10 pps
SW2: Make Rate 33% 40%
Receive Volume Control
Three position volume control
Use maximum
position for hearing
impaired only.
Otherwise hearing
damage may
occur.
Table 9-7 Selection Switch in LAN
Power
Active Power
Failure
Power
Restored
IP-Network State
Normal IP PSTN IP
Network Failure IP* PSTN IP*
Network Power
Restored
IP PSTN IP
* IP can communicate when changed to PSTN.