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GSM-DL1 GSM auto dialer
GSM-DL1 is a GSM auto dialer; designed for car alarm, boat alarm, home alarm and other applications. When it is triggered, it dials pre-programmed telephone numbers through a GSM mobile phone. Notification can be SMS and/or voice message as programmed. The GSM mobile phones can be used are Ericsson A1018, T18, and S868.
J2 Wiring
+12V – Connects to 12VDC
GND – Connects to power ground
ARM – Validates the trigger input of ZL & ZH. Jumper JP2 selects H or L active for ARM input.
ZL – When the dialer is armed, applying L (0V DC, GND) to this input for over 2 seconds would activate the dialer.
ZH – When the dialer is armed, applying H (5~12V DC) to this input for over 2 seconds would activate the dialer.
Jumper JP2:
Pin 1 & Pin 2 shorted – Applying 0V to ARM input, the dialer is armed.
Applying +12V to ARM input (or leave it open), the dialer is disarmed.
Pin 2 & Pin 3 shorted – Applying +12V to ARM input, the dialer is armed.
Applying 0V to ARM input (or leave it open), the dialer is disarmed.
Note: 1). Only when “ARM” input is active (Arm state), it validates the trigger inputs ZL & ZH, and permits listen-in from tel. #1 & #2.
Connects the GSM mobile phone with the dialer through the cable supplied.
Phone jack
Connects stereo headphone for listening recorded voice.
Note: In case no headphone is available, you may trigger the dialer, to check the recorded voice from the telephone, which is called by the dialer.
|
Green LED |
Red LED |
Conditions |
|
Slow Flash |
OFF |
Disarm state |
|
Quick Flash |
OFF |
Arm state |
|
OFF |
ON |
Recording voice |
|
ON |
OFF |
Playing voice |
|
OFF |
Flash |
Dialing telephone |
|
Flash |
ON |
Alarm was triggered* |
|
OFF |
OFF |
Reading data from GSM mobile phone** |
Remark: *The Red LED will turn off after arming the GSM-DL1 again.
** This happens when A). Connecting the GSM mobile phone to the GSM-DL1,
max. period 20 seconds.
B). When the GSM-DL1 is armed (from disarmed state); the period is about 5 seconds.
TEL. number programming
The contact tel. numbers must be saved in the phone book (from #1 to #7) of the GSM mobile phone, which connects to the GSM-DL1. For any numbers less than 5 digits (including blank number), the GSM-DL1 will discard them.
SMS programming
1). The SMS to tel. #1 must be saved in the first message of “To send” list of GSM mobile phone, which connects with the GSM-DL1. And the SMS to tel. #2 is saved in the second message. Refer to your Ericsson GSM mobile phone’s operation manual, and erase all the SMS messages in the list of “To send” first, then key in new SMS message you want (answer “NO” to the display of “Send Messages, Enter no: ”, also answer “NO” to “Reply request”), this will be the first SMS message. Afterward, key in the second SMS in the same way. Once the GSM-DL1 is triggered, the first message of “TO send” will be sent to tel. #1, and the second message to tel.#2.
Note: A). Once the SMS message is sent after the GSM-DL1 is triggered, the message will not remain on “To Send” list, instead it will show on “Sent” list of the GSM mobile phone. Anyway, it doesn’t affect the SMS sending afterward.
B). To keep normal operation, do not change the setting on the GSM mobile phone after successful programming.
2). The maximum length of SMS may vary with GSM mobile phone, please refer to the manual. Anyway, it’s recommended to use shorter message (for example: “Alarm from Bill’s car”.), for it’s easier to read.
Voice recording
1). Make sure the dialer is in DISARM state, if not, disarm it first.
2). Press S3 first, and then press S4 (PLAY switch) until the RED LED lights on, release the switches, and start recording. Keep the background silent, and about 30 cm away from the dialer for speaking.
3). After completing recording (10 seconds), the voice will be replayed through the phone jack, which connects a headphone
Voice playback
When the dialer is disarmed, you may check the recorded voice by pressing S4 for 1 second, the voice will be played through the phone jack, which connects a headphone. Meanwhile, Green LED lights up till the end of playback.
Operation & Test
1). Connect 12V power supply to GSM-DL1.
2). Record the voice message as aforementioned.
3). Program SMS message as aforementioned.
4). Programming the tel. numbers.
5). Connect a GSM mobile phone to the GSM-DL1
Note:1. If the battery of the GSM mobile phone is too low, please fully charge it before connecting.
2. It takes about 10~20 seconds for the GSM-DL1 to communicate with the GSM mobile phone after connection.
6). Arm the GSM-DL1, wait 5 seconds and apply +12V to ZH (or apply 0V to ZL) for 2 seconds minimum, it will start to dial telephone numbers.
Dialing sequence
The dialing sequence of the telephone numbers is from #1 to #7 on the phone-book of GSM mobile phone. #1 and #2 receive SMS messge only. For #3~ #7, if there is no answer in 20 seconds, the GSM-DL1 stop calling and redials this number after 5 seconds. In case, still unswered, it skips to dial the next telephone number. If the called party anwers in 20 seconds, it will play once the voice message (10 seconds), and then enables the listen-in function for 3 minutes, and terminates the call automatically. After that, it continues to dial the next number. If the called party hangs up the phone before the end of 3 minutes, the GSM-DL1 disconnects the line immediately, and dials the next number after 5 seconds.
For unaswered numbers #3 ~#7, the dialing cycle will repeat once again, then terminates dialing. During the dialing cycle, if you Disarm the GSM-DL1, it terminates the dialing too.
Listen-in
Only the telephone numbers in GSM phone book #1 ~#4 are allowed to dial in for listen-in, when the GSM-DL1 is armed. Max. 3 minutes for each call. But you have to make sure your telephone sends caller ID (and you turn on this option on your mobile phone too); otherwise, it can’t work. For not to alert the intruder, you may turn off the ring sound on the GSM mobile phone in advance, which connects with the GSM-DL1.
Supply voltage : 9 V ~ 15VDC
Maximum current @ charging : 200 mA.
Maximum current @ without phone : 13 mA.
Working temperature : -20 ~ +55 degree C.
Recorded Voice length : 10 seconds
Contact numbers : max. 7 numbers. Two for SMS, Five for voice transmission.
Listen-in time : max. 3 minutes
APPENDIX
When the GSM-DL1 is connected with a car alarm,
1). Connect the “Start Disable” wire of the car alarm to the “ARM” input of GSM-DL1
Note:
A). For those car alarms, whose “Start Disable” is 0V when it is armed, put the Jumper JP2 of the GSM-DL1 at PIN 1 & PIN 2 position (shorted).
B). For those car alarms, whose “Start Disable” is +12V when it is armed, put the Jumper JP2 of the GSM-DL1 at PIN 2 & PIN 3 position (shorted).
2). Connect the “Siren Output” wire of the car alarm to the “ZH” of the GSM-DL1.
3). Connects +12V power of the car’s to the power to supply the GSM-DL1 (through a protection fuse is recommended).