IP Office Basic Edition - Quick Mode Installation
Page 222
15-601042 Issue 24i (20 December 2011)
IP Office 8.0
9.11.2 ANALOG Port
These ports are analog trunk ports. The IP400 ATM4 analog trunk cards and IP500 analog trunk cards only support loop-
start trunks. The ATM16 Analog Trunk module supports both loop-start and ground-start trunks, switchable within the IP
Office configuration.
ANALOG
Pin
Description
1
Not used.
2
Not used.
3
Not used.
4
Ring.
5
Tip.
6
Not used.
7
Not used.
8
Not used.
·
Off-Hook Current: 25mA.
·
IMPORTANT
In all IP Office installations, any module being used for analog trunk connections must be connected to a
functional
earth
.
·
WARNING
Within the Republic of South Africa and in areas of high lightning risk, any module using analog trunk connections
must be connected to a
protective ground
and to
surge protection equipment
.
9.11.3 AUDIO Port
This port is found on the rear of all IP Office control units. It is used for the input of an external music-on-hold sound
source. Note that if the IP Office has loaded an internal music-on-hold sound file, any input from this socket is ignored.
The port is a 3.5mm stereo jack socket suitable for use with the most standard audio leads and connection to the
'headphone' output socket of most audio systems.
The use of a 'headphone' socket allows simple volume adjustment. Connection via a 'Line Out' socket may require
additional equipment in order to adjust the volume level.
Pin No.
Description
Common
Common
Left
Audio In - Left Channel.
Right
Audio In - Right - Channel.
·
Input impedance: 10k /channel. Maximum a.c. signal – 200mV rms.
27
27
28
