Specifications

Dial through
The access code for dial through is different from that
used for dial-in calls. The central desk transfers the
incoming calls to the paging line and places a DP 6000
call to the transceiver that is being called.
If the called transceiver is not in the storage rack the
speech channel is opened between the two transceivers
holders. The conversation is ended under the following
conditions:
- Release code is entered by one of the transeiver
holders.
- No speech signal from a transceiver for a duration of 5
seconds.
If the called transceiver is in the storage rack, an absent
indication (audible or visual) will be sent to the
transceiver that placed the call.
REQUIREMENTS
The recommended minimum hardware and software is a
basic Alphadesk LBB 6000/50 with a speech/talkback card
LBB 6001/00.
86 | Personal Security Data Book
If programmed for manual operation, the audio unit
produces a ringing sound on receipt of a call to draw the
attention of the operator.
When a transceiver is calling, the operator presses the
speech button on the audio unit to accept the call and
open the speech channel.If the operator is not present at
the PC, and cannot accept a call, the desk may be
programmed so that the call will be converted and passed
on to a transceiver. This conversion process may be
programmed to take place immediately after the
incoming call has been detected or after a pre-
programmed delay time,in which time the operator has
the opportunity to take the call first.
The conversion process can be terminated under the
following conditions:
- The transceiver holder enters the predefined release
code ( e.g. #1).
- No speech signal from the transceiver for a pre-
programmed time ( range 5 - 60 seconds).
- Reset by the operator at the desk.
A relay located on the speech and talk-back card may be
used for external signalling of incoming calls.
Bosch Security Systems B.V.
www.boschsecuritysystems.com
9498 973 14813 01-1 | Printed in The Netherlands | Januari 2004 • Data subject to change without notice