Copyright in 2000 by Micro Seven, Inc.

1004Hz Test-tone.

Micro Seven Model CL10, PC-Internal Telephone Line (C.O.) Simulator, is an ISA card that is plugged into PC's empty slot, and it provides two simulated C.O. telephone line. The CT10's simulated telephone characteristics are programmable by PC, and the programmed parameters are saved to computer's disk drive as a unique telephone line condition for later retrieval. The CL10's Programming Software also provides a simple digital signal-processing mode (DSP mode) that stores and reads digitized signals at line 1 and 2. The satellite delay of signals between line 1 and 2 is the application of the DSP circuit mode. A switching circuit may be selected among analog, digital, and DSP circuits. In analog circuit mode, the time-division multiplexing circuit is switched off, and all signal switching is done in analog circuit unlike digital circuit mode. The DSP circuit mode is a circuit where signals are converted to digital value and processed by PC in a special digital circuit. The model CL10 creates an environment for an integrated test station where modem, fax, and telephone products are located in a computer and tested with internal telephone line simulators. A line monitor by CL10 Programming Software is enabled to display dialed numbers and line activities. The programmable parameters include telephone numbers, ring-signal frequency, battery-feed voltage (loop voltage), line impairment mode, analog/digital/DSP circuit, call progress tone, PBX mode, disconnect signal, network delay, stutter dial-tone, and caller-ID parameters. The CL10 generates ring signal and battery-feed voltage from PC's main power supply. The call-progress tone is selected between dual-frequency and single-frequency tones. The battery-feed voltage is selected between 20 and 40V. The ring signal is a fixed-amplitude sine wave with programmable frequency. The caller-ID programmable parameters in single/multiple message formats are caller-ID names, private/out-of-area, names, and visual message display. The caller-ID date and time are same as computer's setting. The caller-ID on Call Waiting is only available in analog circuit mode. The CL10 also contains line-impairment mode with extra insertion losses and random noise added for long-distance telephone lines. All the programmable parameters may be saved as a file in computer for future loading. When the computer is powered up and CL10 software is run, the last saved parameters may be automatically loaded. The CL10 is also equipped with a forced-disconnect feature where disconnect signals are sent to calling and called lines. Programmable network response delay simulates time delay after completion of dialing. Simulated PBX mode returns dial tone after dialing 9. The secondary call progress tone generates a single-frequency tone instead of dual-frequency call progress tone. The programmable disconnect signal changes duration of the disconnect-signal. Custom software that provides digitization of signals, custom display, other special application of model CL10 for various telephone functions may be available.

A low-cost version, model CL10-C is also available without caller-ID, digital circuit, DSP circuit, programming of battery-feed, random noise, and PC interface.

Minimum computer requirement: XT-compatible, 500k bytes RAM

Line Monitor displaying dialed numbers and monitoring line activities

File management for saving and loading parameter files

Displaying programmed parameters

Programming of the following:

Switching circuit among analog, digital and DSP circuits

Ring signal frequency

Telephone numbers

Line Impairment mode (extra 20 dB and random noise)

Random noise amplitude

Satellite delay (only for DSP mode)

Caller-ID parameters

Dual-frequency or single-frequency call-progress tone

Battery-feed voltage (loop voltage)

PBX mode

Stutter dial tone

Network time delay

Disconnect signal duration

Analog circuit: time-division multiplex circuits are turned off, and signal switching between two simulated telephone lines is done by analog circuits. Enabled by Programming-by-Dial, 0#252*016* with dual-frequency call progress tones, non-PBX mode, and non-Hot Line mode.

Digital circuit: Signals at line1 and 2 are converted digital form, and output after switching back to analog form. Power-up default condition.

DSP circuit: same as digital circuit, but the converted digital value is stored in computer's memory for later retrieval.

Telephone numbers, programmable by CL10 Software:

1. Primary telephone number: selected by Programming-by-Dial 043 or factory default: line 1 or 2.

2. Secondary telephone number: selected by Programming-by-Dial 044

The number is same as calling number in caller-ID with its length programmable. The first digit must not start with "0" for stand-alone mode.

DTMF dialing signal power: -13dBm to +5dBm per a frequency with no more than 4dB difference between frequencies.

DTMF dialing detection time: 45 ms

Pulse dialing: Break period: 45 to 75 ms (60 ms nominal), make period: 30 to 60 ms (40 ms nominal)

Simulated PBX Mode, Programmable by CL10 Software:

The following dialing enables the simulated PBX mode where dial tone returns after dialing 9:

Programming-by-Dial 0#252*004* with dual frequency call progress tone and 0#252*012* with secondary call progress tone.

The regular dialing methods work as well here. For example, if the secondary dialing method with a telephone number of 3456789012and the PBX mode are enabled, dialing of 3456789012 or 93456789012 would ring the other line. To return to non-PBX mode, dial Programming-by-Dial 0#252*000* or dial 0#252*008* with secondary call progress tone.

Input impedance at 1 k Hz: 600 ohms +/- 5%

Signal Bandwidth: 150 HZ to 3.5 k HZ

When a number of Programming-by-Dial 00 and line-number is dialed, line impairment circuit with additional 20dB of insertion loss and -55dBm of random noise are added to signals between line 1 and 2. After this line impairment mode is programmed in, the primary or secondary dialing method will not affect this line impairment mode. Signal power of random noise is also programmable.

The random noise amplitude is set at –55 dBm as a factory default value, but it may be changed by the above dialing method. The factory default value is obtained with nnn=011. The smaller number, the lower signal power.

i.e. –31 dBm for nnn= 176, -37 dBm for nnn=088, -43 dBm for nnn=044, -49 dBm for nnn=022, -61 dBm for nnn=005, -67 dBm for nnn=000.

When Programming-by-Dial 09 and a line number is dialed, the insertion loss between lines becomes only 1 dB, and the random noise is removed. This is the factory default condition.

Selection between -20 or -40 volts:

1. -20 volts mode is selected by dialing Programming-by-Dial 041, and it is the factory default condition.

2. -40 volts mode is selected by dialing Programming-by-Dial 042. The battery-feed voltage is changed to -20 volt mode when called line is ringing or in its off-hook state (answered). When the called line hangs up the line, the battery-feed voltage is returned to -40 volts.

20 +/- 2% Hz sine wave on power-up, but the frequency is set by CL10 Software. Normally 2 sec on 4 sec off with exception of distinctive ringing features programmed by Programming-by-Dial method.

Amplitude: 67V RMS into open circuit. It is 66 V RMS into RN=0.1, 56 V RMS into RN=0.5, 48V RMS into RN=1, and 40V RMS into RN=1.7.

Note: According to the FCC-part 68 rule, the RN=7000/(equivalent resistive value in ohms) for ring signal of 20Hz +/- 3%.

The following distinctive ringing pattern is enabled instead of standard 2 sec on/ 4 sec off ringing pattern:

(a). Dialing Programming-by-Dial 0 * 1 + (line number): 2 sec on/ 4 sec off (default condition)

(b). Dialing Programming-by-Dial 0 * 2 + (line number): 0.8 sec on, 0.4 sec off, 0.8 sec on, 4 sec off

(c). Dialing Programming-by-Dial 0 * 3 + (line number): 0.4 sec on, 0.2 sec off, 0.4 sec on, 0.2 sec off, 0.8 sec on, 4 sec off

(d). Dialing Programming-by-Dial 0 * 4 + (line number): 0.3 sec on, 0.2 sec off, 1 sec on, 0.2 sec off, 0.3 sec on, 4 sec off

Off-hook impedance requirement: 400 ohms maximum DC, 600 ohms nominal AC

Call Progress Tones, Programmable by CL10 Software:

Standard dual-frequency call progress tones, nominal -16 dBm.

Dial Tone: 350 Hz + 440 Hz, continuous unless programmed for stutter dial tone

Ring-back Tone: 440 Hz + 480 Hz, 2 sec ON/4 sec OFF.

Busy Tone: 480 Hz + 620 Hz, 0.5 sec ON/0.5 sec OFF.

Accuracy in frequency component: +/- 1%.

Dialing Programming-by-Dial 07 enables the secondary call progress tones. Instead of generating dual frequency call progress tones, single-frequency tone of 480 Hz is produced with signal power of –18.5 dBm. Dialing 07 switches back to the dual frequency call progress tones.

Dialing Programming-by-Dial 046 enables stutter dial tone with three of 0.1 seconds on/off period following with continuous dial tone.

Dialing Programming-by-Dial 045 disables the stutter dial tone. It is a factory default condition.

Line Input Jacks: USOC-RJ11-C, standard modular phone jacks

Power Switch: on when the switch is pushed in, off when the switch is pushed out.

Calibration: not needed because of digitally synthesized sine wave generators.

Dimensions: 10 cm (4") W x 20 cm (8") H

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.

Single message or multiple message-format caller-ID FSK generation is supported. Programmed parameters includes telephone number, name, date and time, telephone number length, name length, privacy/out-of-area, call qualifier on/off, visual message on/off, marking period before FSK data, silence period after the first ring, continuous caller-ID generation on/off, and wrong checksum generation on/off.

Frequencies: 1200Hz +/- 2 Hz, 2200Hz +/- 5Hz

Signal power: -14dBm into 600 ohms

Dialing Programming-by-Dial 048 repeats caller-ID sequence forever.

01 + Date + Time, i.e. 0106011230 for 12:30 A.M., June1.

02 + (line number) + (telephone number), i.e. 025036936982 to assign 5036936982 for line 2. The programmed number is the same as the secondary telephone number. A caller-ID display with a re-dial feature can dial a calling line.

02 + (line number) + *, to assign private status.

02 + (line number) + #, to assign out-of-area status.

03 + (line number) + (3-digit ASCII)*(3-digit ASCII)*------

i.e. 0 3 1 0 7 7 * 0 7 3 * 0 6 7 * 0 8 2 * 0 7 9 *0 ------- to assign MICRO--- for line 1 name. All characters must be entered to program a complete name.

Multiple-message format: * 1

Single-message format: * 2

Multiple-message format without name: * 3

Wrong check-sum generation: * 4

Reset by the above *1, *2, or *3

Visual message waiting ON : * 5

Reset by the above *1, *2, or *3

Visual message waiting OFF : * 6

Reset by the above *1, *2, or *3

Silence period right after the end of the first ringing period before a caller-ID sequence: * 7 n, where total time is n times 100 ms. "0" is considered as a decimal number of ten. The factory default is 500 ms.

The ring signal may no turned on/off by dialing * 0.

Call qualifier (long distance indication) on/off: *#

Telephone number digit: 0 # 1 7 8 * n n n *, where nnn forms a 3-digit decimal number. The default value is 10 digit. The maximum number is 18.

Name length is programmable by: 0 # 1 7 9 * n n n *

Caller-ID or caller-ID on call-waiting sequence may be continuously generated by dialing 0 4 8. To disable continuous caller-ID generation, dial 0 4 7.

SAS duration (Programming-by-Dial 0#161*nnn*), CAS duration (Programming-by-Dial 0#162*nnn*), acknowledge period (Programming-by-Dial 0#163*nnn*), wait-time between DTMF reception and FSK data generation (Programming-by-Dial 0#164*nnn*) are programmable. The call-waiting CID sequence is started by dialing Programming-by-Dial 0 5 *. Dialing Programming-by-Dial 048 repeats call-waiting caller-ID sequence forever.

Subscriber Alert Signal (SAS): 440Hz +/-2 Hz, -19dBm into 600 ohms

CPE Alert Signal (CAS): 2130 Hz +/- 10Hz, 2750 Hz +/- 10 Hz, -20dBm into 600 ohms, tone level tolerance of +/- 1 dB per frequency.

In the on-hook caller-ID, the marking period before the FSK data is programmable by Programming-by-Dial 0#166*nnn*. In the off-hook caller-ID (caller-ID on call-waiting), the marking period is programmable by Programming-by-Dial 0#167*nnn*.

1. Select primary (short) dialing method.
2. Battery-feed voltage of -20V
3. No line impairment mode is selected.
4. The random noise amplitude is set at -55dBm for line impairment mode.
5. Continuous dial tone, not stutter dial tone.
6. The sleep mode is enabled.
7. The programmable telephone number and caller-ID telephone numbers if enabled, are set as the following ten
   digits: line 1: 1234567890, and line 2: 2345678901
8. Selects multiple message format display for caller-ID.
9. The names of caller-ID parameters are the following in 15 digits:

Line1: ABCDEFGHIJKLMNP, and Line 2: BCDEFGHIJKLMNOP

10. The call qualifier is turned off.
11. Marking period before FSK data: 160 ms (on-hook caller-ID generation), 70 ms (off-hook caller-ID display)
12. Silence period after the ring: 500 ms
13. Turn off continuous caller-ID display
14. Enable caller-ID generation with standard ring-signal.

15. Parameters for caller-ID on call waiting

SAS duration: 300 ms

CAS duration: 80 ms

Acknowledgement timeout period: 160 ms

Wait time between DTMF reception and start of FSK data generation: 50 ms

15. Channel Seizure Signal Length: 30 characters of hex55
16. No network response delay
17. Disconnect signal of 320 ms
18. The regular dialing method instead of the hot-line mode is selected.

19. Dual frequency call progress tones are selected instead of secondary call progress tones.

The following test-tone are produced after dialing the following:

051: 350 Hz, -18.5dBm

052: 440 Hz, -18.5dBm

053: 480 Hz, -18.5dBm

054: 620 Hz, -18.5dBm

055: 1200 Hz, -14dBm

056: 2200 Hz, -14dBm

057: Channel Seizure Signal (1200, 2200), -14dBm

058: 2130 Hz, -23dBm

059: 2750 Hz, -24dBm

050: CAS (2130+2750), -20dBm

05#: 1004 Hz, on/off by 5 Hz, -12dBm

The low-cost version, CL10-C is available with the following specifications:

-No PC interface and no CL-10 Software

-Analog circuit mode only (no digital mode)

-No selection of battery-feed voltage, 20V only

-No caller-ID

-No random noise generation

-No test tones generation

-20Hz ring signal without frequencies programming