Micro Seven Inc.® model
an alarm-receiver simulator
and alarm-receiver for Contact-ID, 4+2 pulse format, and SIA-FORMAT
with received signal amplitude analyzer and random noise generator for testing alarm panels under bad telephone line conditions
copyrights Micro Seven, Inc.®, 2007, 2008, 2009, 2010, 2014, 2016
Micro Seven, Inc. model LS15-E+ contains Alarm-Receiver Simulator/Tester and alarm receiver. The Alarm-Receiver Simulator/Tester function provides simulated telephone-line and alarm receiver for testing and demonstrating alarm panels for the Ademco® (registered trade mark by ADEMCO Group, a division of Pittway) Contact ID and 4+2 pulse format protocols. The simulated telephone-line functions include generation of dual-frequency-type dial and ring-back tones, detection of DTMF and rotary-pulse dialing pulses, and battery-feed function. The LS15-E+ provides handshake tones for both 4+2 pulse and Contact-ID formats. The 4+2 pulse format includes features for SIA DC-02-1992.02 (R2000.05) 4.1.3 SIA Pulse Format P3. As a contact-ID alarm receiver, LS15-E+ provides functions of generation of handshake tones and kiss-off tones, receiving alarm messages, check-sum calculation, and transmitting alarm messages in ASCII format at RS232C interface to a PC. It operates with an AC adapter that is provided with LS15-E+. An alarm panel may be connected directly bypassing telephone companies at line 1 or may be connected to telephone lines at line 2. The Alarm-Receiver Simulator function is available at line 1, and regular alarm receiver function is available as CPE port at line 2. Alarm receiver software for contact-ID method is provided. RMS value and transmission power in dBm at input for FXS or FXO interface are displayed automatically for each segment of Contact-ID message by using the control software.
MICRO SEVEN-Model LS15-E+, Alarm Receiver Simulator/PBX Simulator
The above screen shot shows RMS value and received signal power for each segment of Contact-ID message for line 1 (FXS interface) or line 2 (FXO interface).
Features of Alarm-Receiver Simulator portion of LS15-E+
i Small, 4" x 1.75" x 7.5"
i AC/DC Operation
i Low cost, and portable
i Connect alarm panel directly or via telephone lines
i Security Industry Association’s Ademco® Contact ID Protocol and 4+2 Pulse format
i Handshake and kiss-off tones
i DTMF or Rotary Pulse Dialing Input
i Primary or secondary (programmable to 18 digit) telephone number
i Dual Frequency-type call progress tones for dial tone and ring-back tone
i Programming of amplitude of handshake and kiss-off tones to simulate the long-distance telephone-line condition
i No calibration required for frequency and amplitude adjustment of handshake, kiss-off, and call progress tones
i RS232C interface to transmit alarm messages to PC and the control software to program many parameters including telephone numbers
i Checksum calculation of received alarm messages
i Alarm-receiver simulator from line 1 and regular alarm receiver at line 2
i Battery-feed (loop current)
i Car battery adapter and 230 volt power options
i Windows-based alarm receiver software for Contact-ID protocol included
i 6 month warranty
i Windows-based programming software included
i Dialing and delivering received alarm messages to other alarm receivers are available as an option
i Security Industry Association’s DC03 SIA FORMAT with FSK modem type
i Random noise is added to telephone line as a impaired-line condition
Application and benefit of alarm receiver
i Demonstration and
testing alarm control panels at factories and fields
i No alarm receivers required for testing alarm control panels
i Complete testing of alarm panels before the installation
Introduction of Contact-ID alarm receiver
Traditionally, when alarm panels are tested in the manufacturing or demonstrated in the sales offices, alarm receiver with two public telephone lines are required in addition to a computer. The Micro Seven model LS15E+ eliminates an alarm receiver and two telephone lines by combining both of telephone line simulator and alarm receiver functions for the application. Here, an alarm panel is connected to the line 1 of LS15E+. The RS232C port of a PC is connected to the rear panel connector of LS15E+ with special cable and connector that are provided with LS15E+. Micro Seven’s LS15E+ control software provides a tool to display incoming alarm messages. First, the alarm panel goes off-hook at line 1. The loop current is flowing at the line 1. Then, the alarm panel dials either primary telephone number “2” (single digit) or secondary telephone-number that is assigned for line 2(programmable one) depending on which telephone number scheme is selected. When the dialed number is correct, the LS15E+ provides ring-back tone for two seconds. Then, there is no sound for four seconds. And ring-back tone is generated for two seconds. After 0.6 seconds, the LS15E+ transmits handshake tones of 1400 and 2300Hz for 100 ms each separated with 100 ms silence period. When the alarm panel receives the handshake tones, the alarm panel transmits a string of alarm message in DTMF tones with a check-sum at the end. When the alarm message with correct check-sum is received by LS15E+, it transmits the kiss-off tone to the alarm panel. LS15E+ also transmits the ASCII equivalent of the alarm message at the RS232C interface to the PC. Then, the alarm panel either transmits a new alarm message after a short delay or hangs up with the telephone line to terminate the call. If the alarm panel did not receive the kiss-off tone, the alarm panel may repeat transmitting the same alarm message four times. When LS15E+ sees the on-hook-state, it turns off the loop current for a few hundred milliseconds as a disconnect signal. Then, LS15E+ is now ready for a new call from the alarm panel. LS15E+ is compatible with the Ademco ® Contact ID Protocol for Alarm System Communications. Programmed parameters are restored upon powering off and on unless noted.
The line 2 of LS15E+ contains CPE (customer provided equipment) circuit to interface PBX inside line. If there is ring signal input at line 2, an off-hook relay is turned on to represent off-hook condition. After short time delay, LS15E+ transmits handshake tones of 1400 and 2300Hz in 100 ms each separated with 100 ms silence period. The rest of alarm receiver sequence is the same as for line 1 as follows: when the alarm panel receives the handshake tones, the alarm panel transmits a string of alarm message in DTMF tones with a check-sum at the end. When the alarm message with correct check-sum is received by LS15E+, it transmits the kiss-off tone to the alarm panel. LS15E+ also transmits the ASCII equivalent of the alarm message at the RS232C interface to the PC. Then, the alarm panel either transmits a new alarm message after a short delay or hangs up with the telephone line to terminate the call. If the alarm panel did not receive the kiss-off tone, the alarm panel may repeat transmitting the same alarm message four times. When the alarm panel hangs up the call, it produces disconnect signal that interrupts loop current at line 2. Then, LS15E+ turns off the off-hook relay. Then, LS15E+ is now ready for a new call from the alarm panel. LS15E+ is compatible with the Ademco ® Contact ID Protocol for Alarm System Communications. Programmed parameters are restored upon powering off and on unless noted.
Standard alarm receiver software, that is provided at no charge, “as is” with no support, no liability, and no support from Micro Seven,, in Windows operating system that receives and decodes caller-ID information and Contact ID alarm messages displays caller’s telephone number, name, date, nature of alarm messages on PC screen. The software also stores the same information as a text file. Any additional software requirement is custom.
Random noise may be added to telephone lines as a impaired-line condition. Programming of enable/disable random noise generation and amount of random noise is done by using the control software shown below.
The default random noise value is –55dBm. New random noise value is input into an edit window in the control software screen. When changing enable/disable line impairment/random noise generation, please recycle the power.
Handshake tone priority:
Unless 4+2 pulse and SIA-FORMAT are individually disabled by the control software, handshake tone for SIA-FORMAT is generated first. . If there is no signal received for SIA-FORMAT, handshake tone for 4+2 is generated. Then finally if there is no signal received by LS15E+/4+2, handshake tone for Contact-ID is generated.
4+2 Pulse Format supports SIA DC-02-1992.02, 4.1.3 SIA Pulse Format P3:
Handshake frequency: 1400 Hz
Handshake duration: 1 sec
Data carrier frequency: 1900 Hz
Data modulation rate: 20 pulses/sec
Data inter-digit time: 500ms
Subscriber ID field: 4
Event code: 2
Verification: double transmission
Kiss-off tone frequency: 1400Hz
Kiss-off tone duration: 750ms minimum
Note: Listen-in feature is always enabled so that audio from incoming telephone line at either line 1 or line 2. Audio is also generated at external audio connector of rear panel of LS15E+/4+2. LS15E+/4+2 does not become on-hook unless incoming line does not hang up and go on on-hook. Received data in ASCII is output at RS232 interface.
Handshake tones for SIA-FORMAT:
2225Hz: -20 dBm nominal power, -30 dBm power in the line impairment mode
Kiss-off tones for SIA-FORMAT (Acknowledge tone):
2025 (positive) or 2225 (negative), -20 dBm nominal power, -30 dBm power in the line impairment mode
Alarm message baud-rate for SIA-FORMAT: 110 or 300 baud automatic detection
1. Primary telephone number
2. Secondary telephone number
DTMF dialing signal power: -13dBm to +5dBm per a frequency with maximum 4dB difference between frequencies.
Pulse dialing: Break period: 45 to 75 ms (60 ms nominal), make period: 30 to 60 ms (40 ms nominal)
DTMF detecting signal power for alarm messages for Contact-ID: -23dBm to +5dBm per a frequency with maximum 4dB difference between frequencies
Alarm message DTMF signal on time (Burst ON time): 50 ms minimum
Alarm message DTMF signal off time (Burst OFF time): 50 ms minimum 400 ms maximum
Note: Contact ID protocol requires Burst ON and OFF times to be 50 ms minimum and 60 ms maximum.
Received contact-ID message signal power for sixteen digits
RMS value of received alarm message with dBm equivalent into 600 ohm with respect to 1 milliwatt is displayed for each segment of sixteen digit alarm message. The average of sixteen digits is also displayed using the same programming software.
1. contact-ID: 1400: 1400+/- 1Hz, duration of 100 ms +/- 1.5 ms, silence period of 100 ms +/- 1.5 ms, and
2300Hz: 2300+/-2 Hz duration of 100 ms +/- 1.5 ms
2. 4+2 Pulse: 1400Hz
Kiss-off tones for both Contact-ID and 4+2 Pulse:
1400 +/- 1 Hz with duration of 750 ms
Kiss-off and handshake tones amplitude: selectable among -14 dBm, -20 dBm, and -30 dBm by control software
Line characteristics: (same as the telephone line simulator function)
Off-hook impedance requirement at line 1: 400 ohms maximum DC, 600 ohms nominal AC(same as the telephone line simulator function)
Call Progress Tones at line 1: single frequency or dual frequency type selected by control software
Stutter dial tone at line 1: selected by control software
Line Input Jacks at line 1 and line 2: USOC-RJ11-C, standard modular phone jack
Programmable disconnect-signal at line 1: by control software
Ring signal detector: opto-coupler
Signal isolation: telephone coupling transformer
High ON-hook impedance is obtained by off-hook mechanical relay.
Handshake tone is produced after 1.8 seconds when the off-hook relay is turned on.
The interface signals: Receive Data, Transmit Data, Data Set Ready, Clear-to-send, and ground. The Data Terminal Ready signal is forced high at LS15E+ meaning that a PC is always ready to receive data from LS15E+.
Cable(9-pin M/9-pin F) is provided.
Received alarm messages are computed for the checksum.
AC/DC Adapter(provided with LS15E+): 117VAC +/- 5%, or 230VAC +/- 5%(for optional 230V AC/DC Adapter)
AC/DC Adapter or Car Battery Adapter input: 12VDC unregulated, 800mA maximum
Line Status Display: red LED for each line to indicate off-hook status (continuous on)
Calibration: not required because digitally synthesized tones
Power-On Indicator: green LED display
Dimensions: 19 cm (4") W x 4.5 cm (1.75") H x 10 cm (7.5") L
Weight: 400g (0.8 LBS.)
Environmental: Operating temperature: 0 to 35 degree C, Humidity: 85% RH at 35 degree C
Warranty/Service: 6 months limited warranty. No warranty if any factory seal is broken. Service is performed at the factory, usually within 5 working days.
Options and Accessories:
Car Battery Adapter
230V input AC/DC Adapter (117V input unit is a standard.)
Reference: Digital Communication Standard-SIA DC-05-1999.09, Ademco Contact ID Protocol for Alarm System Communications
Reference for SIA-FORMAT: Digital Communication Standard-SIA DC-03
Programming of kiss-off tone length, kiss-off and handshake amplitude, single frequency/dual frequency call progress tones, PBX mode, stutter tone, nine different telephone numbers, selection of single-digit telephone number and secondary telephone number is available in standard Windows-based control software with the screen display shown below. Loading of default file and saving your programmed parameters including telephone numbers as PC disk files are also provided.
Alarm messages are shown in hexadecimal notation of a byte; “30” for ASCII “1”, “41” for ASCII “A”, etc. instead of ASCII characters.
Parity bit testing:
Disable transmission of negative acknowledge tone after receiving a wrong parity bit. The column parity checking is still valid.
Selects a wrong starting data pattern instead of hexadecimal FF for column parity word.
Alarm receiving software for Contact-ID: Windows-based
Note: we provide no liability using LS15E+ and alarm receiving software to all people and companies including alarm panel users, alarm central station, telephone companies, and all distributors.
A typical PC display is shown below: Note that the first line is date/time data that is received from caller-ID, and the date/time on the fifth line is derived by PC. The second and third lines are also from caller-ID. Alarm message number is incremented by each alarm message that is received. The sixth line shows a complete alarm message.
Receiving caller-ID data---- Date/time: 03231047
Caller's telephone number: 5036936982
Caller's name: MICRO SEVEN INC
Alarm message number: 12354
Fri Mar 23 10:47:10 2007
Alarm message: 1234181131010158
Acount number: 1234
Event qualifier: New Event
Event code: 131 Perimeter-Burglar Alarm
User/Zone Number: Zone 015
Partition number: 01
Micro Seven, Inc. ®
Hillsboro, OR, U.S.A.
Home Page: www.microseveninc.com