Micro Seven, Inc.

MINI-PBX SIMULATOR, Model PC300-32AD

Micro Seven-MINI-PBX SIMULATOR, model PC300-32AD is shown in the above picture.

MINI-PBX SIMULATOR, model PC300-32AD, provides thirty-two simulated telephone lines in a 19-inch rack-mount configuration with 20 Hz ring signal and multi-line DTMF dialer, which enables all lines to dial in DTMF mode simultaneously. Telephone numbers are 2-digits. It also contains LED display for each line for off-hook or ringing state. AUX SWITCH 1 on the front panel is provided to increase insertion losses between all lines to enable modem-testing for low input signal conditions. AUX SWITCH 2 selects switching circuit mode between analog and digital. In the analog switching circuit mode, signals between lines are not converted to digital forms; therefore, signals do not contain A/D noise or quantization noise. Telephone calls between two adjacent lines are only permitted in the analog mode. In the digital switching circuit mode, signals between lines are routed through analog to digital and digital to analog converters, and the signals contain quantization noise. In the digital switching circuit mode, telephone calls between any lines are permitted. The PC300-32AD may also be used for table top use. The frequency component for dial, busy, and ring-back tone is 500 Hz sine wave. For custom configuration options, line impairment options and dual frequency call progress tone options may be installed. Serial port interface and programming software are included as standard features.

SPECIFICATIONS:

Dialing:

Phone Number: two digits, 11 through 42

DTMF Dialing: -13 dBm to +5 dBm per a single frequency ;no more than 4 dB difference between frequencies.

DTMF Dialing Detecting Time: 45 ms

Pulse Dialing (10 pulse per second):

Break Period: 45 to 75 ms (60 ms nominal).

Make Period: 30 to 60 ms (40 ms nominal).

Multi-Line DTMF Dialer: all lines contains multi-line DTMF Dialer capabilities, and it allows all lines to dial in DTMF mode.

DAA Impedance Requirement:

240 ohms maximum DC, 600 ohms nominal AC

Line Characteristics

Input Impedance at 1 k HZ: 600 ohms +/-5%

Signal Range: -45 to +5 dBm

Signal Bandwidth: 150 HZ to 4 k HZ

AUX SWITCH 1

Insertion Loss between lines is 2 dB when the AUX SWITCH 1 is down. It is 22 dB when the AUX SWITCH 1 is up.

AUX SWITCH 2

Analog switching mode when the switch is up.

Digital switching mode when the switch is down.

Caution: Telephone calls between two vertical RJ11-C connectors, i.e. between line 11 and 12 are permitted in the analog switching mode.

Caution: Do not change AUX SWITCH 2 position when the instrument power is on. Unpredictable results may occur if AUX SWITCH 2 position is changed when the instrument power is on.

In the analog switching circuit mode, signals between lines do not go through A/D and D/A converters, so the signals don't have quantization noise. In the digital switching circuit mode, Because signals between lines are routed through analog to digital and digital to analog converters in digital circuit mode, the signals contain quantization noise. In the digital switching circuit mode, telephone calls between any lines are permitted.

PBX Battery Feed Voltage: -30 V minimum

Serial interface and programming software

Serial interface that is connected to RS232c interface of PC compatible computer provides the following:
1. Programs a common preceding telephone number for maximum fourteen digit
For example, when the common telephone number is 1-800-555-12, then
the first line is 1-800-555-1211, the second line is 1-800-555-1212, the third line is
1-800-555-1213, and the last line is 1-800-555-1242. The programmed telephone numbers are
saved in non-volatile memory inside PC300.
2. Disable front panel switches for extra 20dB insertion loss and analog/digital selection switch, and enable computer programming of extra 20 dB insertion loss and analog/digital selection.
3. Selection between the conventional telephone number and 2-git programmable roll-over telephone number. The programmed selection is saved in non-volatile memory inside PC300.
The DOS-based programming software in 3.5" disk is included as a standard feature. Modem cables interfacing 9 and 25-pin connectors are also provided.

Ring Signal:

90 Volts RMS, 20HZ, 2 sec on/4 sec off

Maximum Load: 5.5 K ohm (equivalent to 1.45B of Ringer Equivalent Number). Note: Overloading any line will cause problems in all other lines.

Tones: (unless the Dual Frequency Call Progress Tone Option is equipped)

Frequency: 500 HZ +/- 20 %

Duration: .5 sec on, .5 sec off (busy tone)

continuous (dial tone)

Same as ring signal duration for ring back tone

Signal Power: -20 dBm nominal

Line Input Jack: USOC-RJ11C, standard modular phone jacks.

AC Power Switch: Located on the rear panel.

AC Power Connector: Located on the rear panel.

Power Requirements: 110-130VAC, 50/60HZ, 100 Watts maximum

Fuses:

There are two fuses to protect PC300: Main Fuse and PBX Power Supply Fuse: The PBX Power Supply Fuse protects PBX battery-feed supply, and the Main Fuse protects a switching power supply inside PC300. When the Main Fuse blows, the PBX Power Supply also shuts down.

Main fuse: 1 A, 3AG, SLO-BLO

PBX Power Supply Fuse: 0.5A, 3AG, SLO-BLO

Line Status Display:

Red LED display for each line is provided to show off-hook state (steady on) or ringing state (blinking). Note: Line Status Display LEDs for line 41 and 42 are not available.

Power Indicator (green LED)

Dimensions:

17 in x Wide x 6.0 in High x 15 in Long

Weight: 17 lbs.

Environmental:

Operating Temperature: 0 to 30 degree C

Storage Temperature: -15 to 55 degree C

Humidity: 85% RH at 45 degree C, or 90% RH at 30 degree C

Warranty/Service:

6 months limited warranty.

Service performed at the factory, usually within ten(10) working days.

Options:

1. Dual Frequency Call Progress Tone Options

2. Line Impairment Options 1 & 2

Micro Seven, Inc.

Email: sales@microseveninc.com