CeoTronics CT-DECT Multi Operating Instructions Manual page 6

2. Description
2.1 General
The transmitter/receiver unit CT-DECT Multi WireCom – Digital Interface Base is one element of a
short-range communication system for maximum four »mobile« users with CT-DECT Standard head-
sets and the user of the hard-wired WireCom system. Communication between »mobile« users with
CT-DECT headsets is wireless.
The CT-DECT Multi WireCom – Digital Interface Base is the base station for maximum four CT-DECT
Standard headsets; the adapter cable, included in the scope of supply, serves for connecting the base
station to the ring circuit of the WireCom system. The CT-DECT Multi WireCom – Digital Interface Base
contains the electronics, required for adapting the WireCom system to the CT-DECT system.
Generally, CT-DECT Standard headsets are used only in combination with the assigned CT-DECT Mul-
ti WireCom – Digital Interface Base unit to which they must be subscribed. The use of a CT-DECT
Standard headset in combination with another CT-DECT Multi WireCom – Digital Interface Base is pos-
sible only after previously subscribing the CT-DECT Standard headset to that CT-DECT Multi WireCom
– Digital Interface Base unit.
 NOTE regarding optional encryption
The CT-DECT Multi WireCom – Digital Interface Base (marking: "S-7.5.41") features encryption.
This means that only CT-DECT Standard headsets (marking: S.-7.5.42) supporting this encryp-
tion are able to communicate with the CT-DECT Multi WireCom – Digital Interface Base unit.
The range between the CT-DECT devices (base/FP and standard/PP) depends on the local circum-
stances. The longest range is reached at eye contact in a free area. Surrounding conditions as moun-
tains, buildings, trees, weather conditions, obstacles (especially the ones containing metal) and body
damping especially with body worn systems may reduce transmitting distance. In the event of exceed-
ing the range limit, the user is informed by an acoustic signal in the headset.
2.2 Power supply and operating time
Power for the Multi is supplied either by three rechargeable NiMH batteries 1.2 V type Mignon AA or by
3 alkaline batteries 1.5 V type Mignon AA in the battery compartment.
With fully charged rechargeable NiMH batteries 1.2 V/2300 mAh the operating time for continuous op-
eration is approx. 18 hours. For charging, the batteries have to be removed from the Multi.
2.3 PTT criterion
With the optional PTT button, integrated in the CT-DECT Standard headset, the »mobile« user is able
to transmit a PTT criterion (PTT = push to talk) to the CT-DECT Multi WireCom – Digital Interface Base
station which is connected to the ring circuit of the WireCom system. With this PTT criterion it is possi-
ble to key via telecommand e.g. a radio connected to the WireCom system as long as the PTT button is
depressed.
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