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TDS1 DIALUP INSTRUCTION MANUAL

Installation Manual.....Photo.....Is it easy to fit?

  • Switch the Dialup unit on. The green power indicator light illuminates to show the unit has power.
  • The red Active light flashes briefly (0.5s) to show the unit is functional. One flash for automatic operation, two flashes for manual.
  • If a remote indicator is fitted, this will follow the condition of the Active light and can be very useful to indicate that callers are connected and listening by land line. It is usually fitted high up at the rear of the hall.
  • The Dialup unit is now ready for use.

Manual Mode Put the switch to Manual. In this mode, both the Dialup unit and a normal telephone need to be connected to the line. Dial the number of the person nominated to listen in and wait until connected. After establishing connection move the switch from the Manual position to the H/R (Hold / Release) position and keep it pressed until the red Active light comes on and you can hear sound from the system. Replace the telephone handset (hang up). The Active light remains on and the called person can hear the program. Press the H/R switch for about 3 seconds at any time to disconnect the Dialup and end the call - red light goes out. The call is automatically ended after about 3 hours as a safety precaution though this option can be defeated by moving an internal link.

Automatic Mode When set to Automatic there is nothing to do - the first incoming telephone caller is automatically connected to the sound system and remains connected until they choose to terminate the call. Pressing the H/R switch has no function and will not release the line.

  • The sound operator will need to think about his new role in broadcasting the program not only in terms of his local audience, but also those now connected by land line. Unlike a live audience who may be able to half hear even with the microphone turned off, those listening in will hear nothing at all if the sound operator fails to react quickly to someone speaking and this is especially noticeable when using a switch to turn microphones on and off, perhaps missing the first word or sentance even. Like a normal radio station, total silence in the program is highly undesirable and can mislead the listener to think there is a fault in the system perhaps even causing them to hang up and end the call by mistake. To avoid this, the sound operator must always be transmitting something even a small amount of background noise (chatter) will help. This is especially important before and after the meeting as well as in between program items. Even during the singing of songs, a small amount of audio via a half opened microphone (not the one next to the chairman please!) will greatly enhance the program output to those listening in and make them feel totally involved. Thought is required by the sound operator as to what is being heard by the listeners. His efforts in this regard will be highly valued by the callers.
  • Multiple callers may be able to listen on each telephone line by using the ‘three way caller' option. Results for this service can be very patchy and depend upon a number of factors, but it is worth trying. Some users routinely connect four different locations via two telephone lines. If each caller also has a three way option, even more callers could be connected though this is unproven. (Please feedback any results on this to us).
  • Anyone using the service is well advised to buy a modern loudspeaking telephone which has a mute feature. This cuts off the internal microphone on the telephone and can make the sound even clearer especially if multiple users are connected on each line. If the telephone is placed on a hard surface then the volume will be found adequate for a room with three or four people in it. For larger venues or locations where the volume is not adequate i.e. many miles from the serving telephone exchange, a hi-fi connector box is available. This allows connection from the telephone line into a line input (i.e. CD) on the hi-fi system and hence the signal can be adjusted for loudness and quality by using the volume and tone controls. Of course this could also be used in remote areas for tying halls together when for example the public speaker is unable to get to the venue for whatever reason or even for memorial overflow situations. The Hi-fi connector would be located at one hall and a Dialup box at the other. Hi-Fi Info
  • The TDS1 Dialup Unit is microprocessor controlled and makes use of surface mount technology to achieve small size together with high reliability. There are no moving parts to wear out and all components are conservatively rated to give a long service life.
  • These instructions are written to help you get the best from your Dialup unit but they need to be followed closely especially by the sound operator if you are to achieve this. For best possible results, invest in an automatic microphone mixer to avoid missing the first word or even sentence of any comments. This is highly frustrating to Dialup users and can be totally avoided.
  • DTSystems January 2001. Revised Jan 2003.

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