8(9)
Datum -
Date
Rev
Nr -
No.
Uppgjord
(även faktaansvarig om annan)
-
Prepared
(also subject responsible if other)
Dokansv/Godkänd -
Doc respons/Approved
Kontr -
Checked
File
1997-06-18
A
1531- DBC 210 01 Uen
INSTALLATION INSTRUCTIONS
8.3
Extra bell / busy signal
There are two alternatives using this function. The function is selected by means of LED 8.
Extra bell:
Active when the DTS receives a ring signal. LED 8 shall be set to OFF.
The function can control an external alerting device or equal.
Busy signal:
Active when the DTS is in off-hook mode. The LED 8 shall be set to ON.
The function can be used to control a “Do not disturb” lamp at the door or
other.
The function can be reached between pin 2 and pin 5 in jack J4. A short-circuit is obtained when
the function is ACTIVE (An opto relay is used to separate the external device electrically from the
telephone). Maximum load on EXTERNAL DEVICE is 1 A resistive or 0.3 A capacitive or 0,3 A
inductive load at maximum 24 V AC or 48 V DC (An external over voltage protection is
recommended).
8.4
Connection of extra handset
An extra handset can be connected to jack J2 fig 8-1. This handset will be connected in parallel
with the original handset. This means that two persons can listen to the conversation. Only one
person at the time shall speak due to speech quality. LED 7 shall be set to OFF.
8.5
Connection of headset or conference unit
A headset or conference unit can be connected to jack J2 fig 8 -1. When connecting a headset or
conference unit LED 7 shall be programmed to ON to activate the locally supported
headset/conference mode.
Headset/conference mode enables a dedicated key (KEY 4) on the DTS to work as the on/off
switch for the headset/conference connection. When on (LED 4 ON), an incoming call can be
answered using either the line key or the dedicated headset/conference key (KEY 4). The
connection can be closed using the clear (“C”) key.
To switch off the headset/conference mode, press the dedicated headset/conference key in idle
mode. The dedicated LED 4 will then be OFF.
To switch to handset mode during a headset/conference conversation the dedicated
headset/conference key can be pressed.
Lifting the handset in headset or idle mode will activate the handset mode.