Linkcom Link Gate A Premium Operator's manual

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Analog GSM Gateway
Link Gate A Premium

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BASIC FEATURES:
Link Gate A Premium is dual band GSM Gate based on Telit GL865 GSM module equipped by a lot of adjustable
features increased comfort of service. It has been designed for GSM network 850/900/1800/1900 MHz.
•Polarity reversal of telephone line allows exact detection of start and end of call.
•CLIP support all ordinary protocols and allows send not only incoming call number but also name (when is
saved in phonebook).
•Call billing allows control exact call duration due tax pulses 12/16 kHz (1. pulse when outgoing call is picked up).
•Beep in minute period into the call allows easy identification of GSM call.
•Monitoring system allows sending SMS to preprogrammed number when voltage of backup batterie is low, unit
is logged to GSM network, no picks up number of ringing called person/connected device doesnt react for
ringing) etc.
•ECHO canceler setting up of local conditions
*Option :
•USB cable with PC software allows you easy configuration as same as sending and receiving SMS messages
(via SMS mail software)* or data transmission.
•Sending of status SMS : 1-30 days (adjustable);
Thanks of many Link Gate A Premium features you can satisfy very wide group of customers. By setting of permitted
numbers to memory of Link Gate A Premium you can restrict unrequested calls (to public numbers).As same as you can
set Link Gate A Premium to provides incoming calls only.
INSTALLATION
By pressing of yellow button release the SIM card holder.
Insert the SIM card and replace the SIM card holder. Before inserting the SIM card we recommend checking at various
mobile phone state of the SIM card (logging with or without PIN, PIN, etc.) and set logging without PIN.
When you want logging with PIN you have to pre-programmed this PIN and set logging with PIN (via table of
programming). Without this setting the Gate wont work. DO NOT FORGET ANTENNA CONNECTION! The available
place for installation select up following point of view:
1. Distance from PBX – possibility of GSM interferences to other PBX lines as same as length of line from Gate to PBX
(max. 200m)
2. Main 230 V for power supply of Gate
3. Quality of GSM signals at the installation place of GSM Gate.

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1.1.1
1.1.2
1.1.3
1.1.4
1.1.5
1.1.6
1.1.7
1.1.8
1.1.9
1.1.10
1.1.11
1.1.12
1.1.13
Power supply
l
Analog line
antenna
SIM
line
USB option
Phone line
Mini USB

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Quality of GSM signal
The sound quality depends on BTS setting where you are connected by the Gate. To find best place for antenna
mounting you can use either mobile phone or feature 29 (table of programming). The suitable signal power is 3 scales of
mobile graduation.
To check and find best position from GSM signal point of view you can use also GG SET (configuration sw).
Connection of antenna
MENU SETWhen you connect magnetic antenna keep on mounting at bigger iron subject. This subject makes “against-
weight” at its depends the power of radiated signal
When you inserted SIM card as same as all cables are connected (do not forget that Link Gate A Premium is
connected on external line not on extension) connect device to main 230V. The blue LED of “power supply” is light up
within 10 sec.
After a while will flash a few times irregularly yellow LED (GSM network registration). Tle CPU then waiting for
communication to GSM module (via LED table – communication off). After 30 seconds the yellow LED start flashing up
GSM signal strength (via LED table).When pick up connected analogue phone or call to Link Gate A Premium from PBX
the LED of analogue line lights up (green LED). In the phone is hearing dial tone of Link Gate A Premium. It is ready to
use.
The most often problems during Link Gate A Premium compact installation:
 All LED is not lighting. There is a problem with the power supply. Check connection to main 230V as same as
connection of adapter to Link Gate A Premium.
 The LED “power supply” lights. When you make connection to Gate green LED is ON and in handset you hear busy
tone. Yellow LED flashing in period “GSM module doesn’t communicate with CPU“. During work with USB could be
programmed fix communication rate for GSM module. Use USB to program rate on “autobauding“.
 The yellow LED flashing in period “PIN unreadable“. After calling to Link Gate A Premium you get busy tone. The
SIM card requires PIN, which is not pre-programmed or is pre-programmed wrongly.
 The LED „communication to GSM„ is flash shortly one for 2 sec. After calling to Link Gate A Premium you are
hearing busy tone. Link Gate A Premium is not log into GSM network – bad signal.
 The yellow LED “communication to GSM” is flashing up signal strength. After calling to Link Gate A Premium is not
light up green LED is not light up and in analogue phone is quiet. It interrupted conduction of analogue line or so much
big resistance in current loop (for example: (longer cable between PBX and Link Gate A Premium).
 The yellow LED „communication to GSM„ is flashing up signal strength“ as same as green LED lights up. The PBX
hold “pick up“ line of GSM Gate. By incoming call you can remove this issue. In other cases check PBX manual.
 The Link Gate A Premium works but call is disturbed by interference. Incorrect position of antenna against
telephone line . Change antenna position.
Note:
Default you make by parameter 99 in programming mode (via programming table at page 11).
All LEDs flashing as same as tone types are mentioned in tables at the end of manual.
USB
You can purchase USB tool for PC configuration of the unit. It is optional. This tool is connected by a 6 wire cable to the
units in middle of phone line. (see picture on page 2).
You can control the GSM modul direcly by virtual COM port. The Gate you can further uses ordinary GSM modem for
data transmission, internet connection or for SMS messages.

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When unit is working as GSM modem then is busy for voice connection. When you pick up the line you will hear busy
tone.
The unit is monitoring data transmission by modem. The data transmission can not be permanent therefore the unit
stays in data mode 10 seconds after finishing of data transmission.
Then is going back to Voice mode (calling)
The same is when you are calling over unit. It is busy for data transmission.
The optional sw supply to unit for sending and receiving SMS messages is SMS mail. It is working under Outlook,
Outlook Express, Opera etc. And you can work with SMS as with normal e mails. ( see manual for SMS mail). It works in
batches and allows programs communication interval (1 to 99 minutes) to Link Gate A Premium for sending and
receiving SMS. Due this we avoid situation that unit is permanently blocked by data mode for voice communication.
Further functionality of USB is monitoring Link Gate A Premium operation. It is possible a record even incoming call
includes time and CLIP, signal strength, etc…
CONFIGURATION
The programming mode is set after acknowledgement dialling to Link Gate A Premium. In the analogue phone is waiting
tone. After password inserting is tone changing to programming tone.
Then you can programming each features of Link Gate A Premium (via table of programming)
Progress of programming:
 Dial 2 digits number of programming feature.
 Dial 1 to 4 digits number for feature value programming.
 Wait for a tone of confirming request (3 shorts tones).
 Confirm the feature by dialling acknowledgement (#)
 Wait for confirming tone.
 Follow programming tone again.
 Finish programming by hang up a phone.
Example: programming of new permitted fix numbers (02)
to memory 09:
Dial acknowledgement (default is #). In phone you are hearing waiting tone ( ). Dial password
(default 0000).
Waiting tone is changing to programming tone ( ).
Dial 1902. Wait for tone of confirming request (3 shorts tones).
Confirm the feature by dialling acknowledgement (#). Wait for confirming tone (one long tone). Finish programming
mode by hang up a phone.
Warning: After dialling of parameter value you have to wait for 3 short tones and then dial acknowledgement (#). Wait for
long tone confirms acceptation of this parameter.
Notes to each parameters:
11 – 19 When you program some prefixes the Link Gate A Premium allows outgoing calls starts by those prefixes only.
The others will get busy tone. When memories will be empty the calling won’t be restricted (default). Memory of prefixes
can content 1 digit only. If you insert 1 digit only the Link Gate A Premium will check first position only.
Rewriting of memory – by storing of new fix numbers are old fix-numbers erased.
Erasing of memory - Memory you will erase by storing of „nothing“. You dial only number of memory which you want
erase and confirm it.
22 Very important features is acknowledge character setting. Default is #. When is # used for PBX features you can
change it on *.

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24 An analogue phones are not enable send “+” which is very used in GSM. In this case is possible to use combination
“00” to send it to mobile phone.
31 This feature identificated connection of Link Gate A Premium to external line at some type of PBX (ex : Siemens
Hicom). 29 This feature is used for searching of antenna best position. After feature activation you get tones
immediately. You end the feature by hang up.
32, 35 The GSM phones requested command to connection on inserted number. The Link Gate A Premium will send a
command immediately after acknowledge character dialling (#).
Notes:
Programming is only by tone dial DTMF. Don’t forget set even external line at PBX.
 Changes are valid after hang up only (finishing of programming mode). It is very important especially in
acknowledge character changes- till hang up you must use previous acknowledgement.
 After numbers dialling you must wait for confirming request, insert acknowledge character and wait for confirming
tone. When you insert acknowledge character before wont be accepted.
 Switch to programming mode is possible even in busy tone.
 Some parameters are possible by software only

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Table of programming
Dial Number
Default
0
0
n
n
n
n
Password nnnn to programming mode access
0
0
0
0
1
1
n
n
n
n
Memory x for permitted fix number(1 to 4 digits)
1
2
n
n
n
n
1
3
n
n
n
n
1
4
n
n
n
n
1
5
n
n
n
n
1
6
n
n
n
n
1
7
n
n
n
n
1
8
n
n
n
n
1
9
n
n
n
n
2
1
n
Reversal polarity
n=0 OFF
n=1 ON
0
2
2
n
Acknowledge character setting
n=0 #
n=1 *
0
2
3
n
Type of dial tone n
n=0 permanent tone
n=1 dial tone up table of tone
n=2 dial tone of public lines operator
n=3 quiet
0
2
5
n
Signalization to the call – short tone each minute
n=0 tone is turn off
n=1 tone is turn on
0
2
6
n
Restriction of call duration
n=0 without restriction
n=1 call duration restricted at 10 minutes
0
2
7
n
PIN
n=0 start without PIN
n=1 start with PIN
0
2
8
n
Outgoing DTMF Inband/Outband
n=0 Inband DTMF
n=1 Outband DTMF
0
2
9
n
Indication of signal power. Power is indicate by frequency of short tones. Max.
frequency is 5/sec
3
1
n
Echo canceller
n=0 echo canceller is OFF
n=1-3 level (efficient) of echo canceller
0
3
2
n
n
Waiting for last number nn sec (01 to 15)
(after finishing of dial by acknowledge character is sending immediately)
0
6
3
3
n
n
Waiting nn sec. for dial after pick up (00 to 99 it is 9.9 sec.)(“0” waiting is not
limited)
0
0
3
5
n
n
Number of dialled numeral, after it is dial send immediately (length of telephone
number)
nn=00 function none active
nn=01-19 number of numeral telephone number
0
0
3
7
n
n
n
n
Storing of PIN
3
8
n
Amplification of sound in outgoing direction (1 to 4)
1
3
9
CLIR feature, switching off outgoing CLIP (#31#)
n=0 OFF
n=1 ON
0
7
1
x
x
y
y
xx=00 No charging pulses
xx=12 12 kHz charging pulses
xx=16 16 kHz charging pulses
yy=00 1 pulse only at the moment of connection
yy=01 to 99 seconds. Pulses each 01 up to 99 seconds
0
0
7
2
n
Amplification of sound in incoming direction (1 to 4)
1
7
3
n
n=0 CLIP is switch OFF
n=1 FSK CLIP Bell
1
7
4
n
Call progress tone
n=0 OFF
0

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n=1 ON
7
5
n
Roaming
n=0 prohibited
n=1 permitted
9
9
Default setting
Table of tones
Dial tone (up setting)
Link Gate A Premium is ready to accept dial
Busy tone – short tone repeated
Called part is busy, doesn’t exist, not permitted,etc...
Ringing tone- long tone and pause repeated
Called part is ringing
Waiting tone-
short tone repeated with quick
cadence.
Link Gate A Premium waiting for password insert
Programming- short tone with quick cadence
Programming mode of Link Gate A Premium
Confirmation inquiry- 3 short tones
Inquiry to confirm inserted parameter
Confirmation tone – long tone
Parameter was saved correctly
Minute tone – short tone with 1 minute period
Minute beep to inform about GSM call
Call progress tone -
short tones with different
frequency
Searching of called part

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LED signaling
Permanent light
(lights up after 3 sec. After power
connection)
Power supply of unit
Permanent light
Line OFF HOOK
Doesn’t light
Line ON HOOK
Flashing in rythm of busy tone
Programming or PC connection mode
Flashing in rhytm of busy tone.
Initialization mode after power supply
connection, restart after programming
etc..
1-5 flashes with period 4 sec
Stand by mode
Number of flashes=signal strenght
Permanent light
GSM connection is running (call)
Short lights off with period 2 sec
GSM modul doesn‘t communicate to CPU
Flashing in period 2sec
SIM is not readed
Short flashes in period 2 sec.
Gate is not registrate to GSM network

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Technical parameters:
Type Link Gate A Premium
Operating position various
Operating conditions temperature: +5° C ÷ +40° C,
Humidity: 10% ÷ 80% at 30° C
Dimensions (mm) 140*97*37
Weight 215g
Part of power supply
Supply voltage 8-12V (AC/DC) (adapter)
Protection thermal fuse in adapter
Safety group ČSN EN 60950 group 2
Analogue telephone line
Telephone interface 2-wires
Telephone connector RJ 11
Impedance 600 Ω ± 20%
Dial tone DTMF tt > 30 ms
Billing 12/16 kHz
Start and end of connection Polarity reversal
Supply conduction symmetrical 24V
Current loop max 29 mA
Resistance of subscribers conduction max. 500 Ω
Ringing 55 Vef / 50 Hz
Signalization 425 Hz ±20Hz
CLIP FSK Bell
GSM:
Mobile network Quad band (850/900/1800/1900Mhz)
Provider according SIM card (3V and 1.8 V)
USB version 1.1, virtual COM