User guide
MD PBX KEY CW
Issue 1.00
Page 8
possibility to have "humming" noises on the connection. After the installation and cabling
using the in this documentation provided connection diagram, the numbers to be dialled
are to be programmed. Before starting with the programming procedure the
programming enable jumper SW4 has to be set on ON. Now call the unit using a
telephone with an DTMF dial pad. After the answer and the acknowledge tone from the
device you have 6 seconds time to start the programming procedure. If no DTMF tone is
dialed in this time, the unit will switch to speech mode. Follow the programming
procedure as described in the next pages. This items can be programmed on the
device:
- Program and delete the dial number for each speed dial code;
- Rotary or DTMF dial mode;
- Number of call with no answer;
- Max. time without speech on line;
- Max. connection time (software timer);
- Programm and delete the access codes for contact 1 and 2 (optional);
- Operating mode for contact 2 (optional) as door opener, automatic function, ON/OFF
mode;
- Max. line seizure time for access code input;
- Activation time for the contact 1 and 2 (optional);
After the programmation, the hardware timer (jumper J1, default 2 minutes) should be
set as required. The unit is now ready to work. You should set up a connection with the
door unit. A regulation of the sending and receiving volume may be necessary. To do this
you should use the regulators placed on the
MD PBX KEY CW
doorstation. Please take
care to regulate VERY carefully. If this is done by two people it might be helpful.
If the
loudspeaker will send only "broken" tones, or it has a too low volume, changing the
volume of the microphone on the MD PBX KEY CW may help
.
With a very loud external enviroment the unit may be have difficulties detecting the
busy tone
. This may happen also with tone which are not within the values as indicated
in the technical specification at the end of this document. In this case you should use
always the dial of the digit "3" to terminate the connection.
Please take care that if you need the external power supply the used transformer should
have
an open circuit voltage of no more then 15 Vpp
. We suggest the use of our
transformer PRS 210.
Please note that only
one door opener with 40 Vpp and 2 A
can be connected to the
build in relais of the unit. If you need to drive more door openers or if you need an higher
voltage or current you should use an external relais. We suggest the use of our relais
1471 or 1471E.
Furthermore please consider this for the installation:
- If you are using digital sets or featurephones on your PABX please take care that these
are enabled to send DTMF tones also after an incoming call. You need this to open the
door.
