5. Loudspaker loudness SPK - by the trimmer you can set a desired loudness of the
loudspeaker. In case you need to further increase the power output of the
loudspeaker, you can use an add-on module with an amplifier Fermax PBX EA.
6. Loudspeaker connection SPK
7. Microphone connection MIC - attention on the right polarity!!!
8. MIC loudness setting - by the trimmer you set the desired level of loudness of the
microphone.
9. Settings of Echo cancellation. Fermax IP DP door phone panel is a hands-free
telephone. During the phone call the signal from a loudspeaker comes back to the
microphone and it comes with a delay to the calling party (that is caused by a
digital conversion and transmission of the signal). For this reason the door phone
panel is equipped by an echo cancellation circuit. It is neccessary to pay more
attention during the setting of the echo cancellation circuit. The right setting of
echo cancellation means at what level of sound the mic turns off in Fermax IP DP
in order to avoid returning the delayed sound.
10. Setting of sensor sensitivity on surrounding light. It is valid only for modules
equipped with a camera. If case the surrounding light decreases below at certain
level (it is set by this trimmer), then the camera is equipped by a white LED
diodes for extra illumination. These LEDs are activated during a phone call only.
11. Green LED - it signals an outgoing call (the door phone panel calls the destination
number or IP address)
12. Yellow LED - it signals an incomming call (there is a call comming to the door
phone)
13. Ethernet connection (UTP cable) - a connection to the computer network. If you
have got a network switch with PoE or a PoE power supply (a box in the size of a
power supply adapter inserted to the input of UTP cable), then you do not need
an extra power supply for operation of the door phone
panel.
14. DIP switch - setting of default values and the mode of
Fermax IP DP door phone via a DIP switch.
1:
reserve (unused)
2:
mode switching P2P / SIP server
Summary of Contents for PBX EA
Page 17: ...Picture 5 Connection of expansion modules 17 ...
Page 38: ...3 1 11 Restart ...
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