Dosch&Amand DA1270 User manual

DECT Repeater
User Manual - extended
Edition
1.
Date
03/2018
Product
DECT Repeater
ProdID
1270.1000.01
Firmeware
Rev1436

DECT Repeater
Rev1436
Page 2 of 10
Content
Content ................................................................................................................................. 2
Introduction ........................................................................................................................... 3
General.............................................................................................................................. 3
Installation............................................................................................................................. 4
Safety precautions............................................................................................................. 4
Placing............................................................................................................................... 4
User Interface.................................................................................................................... 5
Connecting the Device....................................................................................................... 6
LED ................................................................................................................................... 6
Associating DECT Repeater to a base station................................................................... 7
Associating more DECT Repeaters to the same base station............................................ 7
Operation .............................................................................................................................. 7
Relay connection - incoming call........................................................................................ 7
Relay connection - outgoing call........................................................................................ 7
Handover between radio cells with ongoing call................................................................. 7
Scenarios........................................................................................................................... 8
Deleting association and new association.......................................................................... 9
Troubleshooting....................................................................................................................10
Technical Data.....................................................................................................................10

DECT Repeater
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Page 3 of 10
Introduction
General
DECT Repeater extends the DECT radio coverage of base stations.
It is characterized by wide compatibility, easy installation and a user friendly display con-
cept.
The performance of DECT Repeater depends on the support and the limitations of the asso-
ciated base station in the DECT network. You can arrange up to 5 repeaters, but rarely those
scenarios are useful or meet the performance expectations in practice.
Generally, a maximum of 3 repeaters in star or 2 in cascade arrangement are recommended.
In accordance with DECT resource requirements, mixed setups are possible, too.

DECT Repeater
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Installation
Safety precautions
Use the device in a dry location only. It should not be placed next to a heat source, e.g. a
heater or direct sunlight. In a close setup, the DECT Repeater could interfere with other
electronic equipment (e.g. Microwave ovens, Hifi-systems etc.). The DECT Repeater must
be used in a socket that is easily to access.
note The DECT Repeater should be plugged LED’s upwards for optimal radio
transmission
Placing
DECT ensures due to its flexible usage of different time- and frequency channels a high level
of transmission and operational reliability within the coverage area compared to other radio
standards. To benefit from this advantage, the repeater should be placed in such a way that
a good DECT link between the devices is possible. Please make sure that whatever setup
you choose minimum distance between base station - repeater or repeater - repeater should
be 10 meters. Beside the basic setup with one repeater, there are other ones for multi
repeater operation.
Star setup:

DECT Repeater
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Cascade setup:
When planning the placement of the DECT Repeater, the local conditions must be taken into
account because they influence the quality of the radio link.
Every barrier located on a straight line between transmitter and receiver will have an impact
on radio transmission depending on its structure. Barrier-free transmission lines are
preferred.
User Interface
Nr
Element
1
LED1 Power (1 color for ON/OFF)
2
LED2 DECT Link Quality (3 colors)
3
LED3 active call in REP (1 color for ON/OFF)
4
Side Key (Clear Registration on Base Station)
5
USB Connector (SW Upgrade)

DECT Repeater
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Connecting the Device
Insert the DECT Repeater into in an easily accessible socket. If DECT Repeater is not yet
associated, go on with association as described below.
LED
Status
Relay
DECT
Power
Power On
Off
Off
Green
Not associated,
Auto search base station
Off
Flashing slowly red
Green
Base station found
Off
Flashing rapidly green
Green
Linked to base station
Off
Green (see Radio link)
Green
Active relay
Green
Green (see Radio link)
Green
Associated, but not linked to base
station
Off
Alternately fast green –
once red Flashing
Green
Description
Interval
Flashing slowly
On/Off –1sec/1sec
Flashing rapidly
On/Off –0,25sec/0,25sec
Radio link
Colour
Excellent to good
Green
Medium
Orange
Poor
Red

DECT Repeater
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Associating DECT Repeater to a base station
- Plug DECT Repeater into a socket near the base station
- Power LED is green and DECT LED is flashing slowly red
- Set base station into registration mode according user manual (e.g. press Paging-
button of base station for 5sec to 10sec)
- If base station is found, DECT LED is flashing rapidly green
- When DECT LED is on, association to base station was successful (green: good
DECT link)
- If association was not successful (DECT LED is still flashing slowly red), go on with
„Troubleshooting“
Associating more DECT Repeaters to the same base station
- All associated DECT Repeaters must be placed close to the base station if more
DECT Repeaters should get associated to this base station
- Plug DECT Repeater into a socket near the base station
- Power LED is green and DECT LED is flashing slowly red
- Set base station into registration mode according user manual (press Paging-button
of base station for 5sec to 10sec)
- If base station is found, DECT LED is flashing rapidly green
- When DECT LED is on, association to base station was successful (green: good
DECT link)
- If association was not successful (DECT LED is still flashing slowly red), go on with
„Troubleshooting“
Operation
Relay connection - incoming call
- Relay-LED is green
- Handset in repeater zone accepts an incoming call, Relay-LED is green until call is
finished
Relay connection - outgoing call
- Handset in repeater zone starts an outgoing call
- Relay-LED is green until call is finished
Handover between radio cells with ongoing call
- When the handset is moving between radio cells with an ongoing (e.g. base station to
repeater cell or repeater to repeater)
- Relay-LED gets green when the handset is locked to the repeater

DECT Repeater
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Scenarios
- Call goes directly via base station
- Handset doesn’t “see”the Repeater
Scenario 1
- Call still goes via base station but if handset moves further away from base station
towards the Repeater it will handover to repeater
- Handset generally prefers calls via base station because the base station has more
capacity
Scenario 2

DECT Repeater
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- Call goes via Repeater because handset doesn’t “see” the base station
- Without repeater, at this position the handset could not do a call
Scenario 3
Deleting association and new association
DECT Repeater is plugged into the socket. If the DECT Repeater is associated to a base
station, DECT LED is green. Press the Reset button ca. 5sec for deleting the association to a
certain base station. DECT LED is flashing slowly red after successful deleting of associ-
ation.
If a base station is in association mode and the DECT Repeater is not yet associated to a
certain base station, DECT Repeater associates automatically to this base station.

DECT Repeater
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Page 10 of 10
Troubleshooting
Problem
Cause
Proceeding
No DECT link to base station
within repeater zone
DECT Repeater is not asso-
ciated with the base station,
DECT LED flashes red
Repeat the registration with
base station
DECT LED is red
Change the location of re-
peater (shorten distance to
base station or try to find
positions without barriers
between) until the DECT LED
is green
Base station is OFF
Turn base station ON
Registration with base station
failed
Base station is not in regi-
stration mode
Set base station in registra-
tion mode
Repeater mode of Base
station is not switched ON
Switch ON repeater mode in
base station configuration
Base station doesn’t support
repeater
Technical Data
Standards
EU DECT, CAT-iq 2.0
Radio frequency range
1880 MHz to 1900 MHz
Modulation
GFSK
Speech coding
32kbit/s G.726
64kbit/s G.722 1)
Transmission power
Average 10mW
Range
Up to 300m outdoors, up to 50m in buildings
Power supply
100 –240V ~ 60/50Hz
Environmental operating conditions
0 C to +45 C
Dimensions
12cm H x 6,1cm W x 3cm L1
Weight
115g
1) Only if base station supports codec.