AMERITEC AM5XT-200 TRANSMISSION TEST SET REPAIRED AM5XT-200
Wideband Transmission Test Set
What Is It?
The Ameritec Model AM5XT-200 is a wideband transmission test set. It is specifically engineered for peak performance for use in the field and in the lab. This easy to use unit offers a full range of transmission impairment measurements and a highly versatile signal generator in a single, compact, portable unit. About the size of a telephone directory, this test instrument fits conveniently on a bench top for use as a laboratory unit or can be rack mounted. The user has 100% digital control of all measure, filter, send, and termination functions. It is equipped with dialing capability and front panel binding posts for a linemans test set. With the addition of an optional rechargeable internal battery pack and soft carrying case, the AM5XT-200 can be utilized as a field tester with a battery life of up to six hours of uninterrupted use. The AM5XT-200 meets North American IEEE 743-1984 standards.
What Does It Do?
The Ameritec AM5XT-200 can perform qualification tests on circuits carrying voice band, HDSL, high quality and audio, DDS to 64 kbps and Basic Rate ISDN or other services using up to 200 kHz bandwidth. It has the ability to simultaneously send signals and measure received signals. Individual selection of "send and receive terminations" and "On Hook/Off Hook DC Hold" circuits are provided.
How Does It Work?
The technician utilizes the front panel with simple selection keys for all measure, filter, send and termination functions. The front panel is divided into easy to locate and easy to read areas for each of the major instrument functions. The selected configuration can easily be viewed at a glance. All measurements are fully auto ranging and may be viewed on the bright LED display. Designed with a built-in selectable 2.16 uf termination in series with the selected impedance. A built-in speaker allows the operator to audibly monitor either the send or receive. With an operating bandwidth to 200 kHz, the Sweep function can be programmed to automatically perform tests across the 20 kHz to 200 kHz bandwidth, while simultaneously measuring level and frequency across the same bandwidth.
What Can It Test?
A single unit with the capability to do the measurements of three separate instruments. Able to measure transmission circuits over the extended voice band 200 Hz to 200 kHz as follows:
dBm level or dB loss
Frequency Response (Attenuation Distortion)
Noise (Wideband or with Filters)
Noise with Tone (Wideband or with Filters)
Signal/Noise Ratio (Wideband or with Filters)
Noise to Ground (Wideband or with Filters)
Impulse Noise (Wideband or with Filters)
Inter-Modulation Distortion (4 tone/2 tone)
2 and 4 Wire Return Loss
Transients (including Phase & Gain Hits, Impulse Noise with Tone & Interruptions)
The addition of a signaling adapter (p/n 30-0033XT) option provides:
Types I, II and II E&M signaling
The addition of signaling adaptors (p/n 30-0070 or 30-0070S) option provides:
DSU Non-Latching Loopback
Manual (or forced) Loopback
SW56 using an external butt set which provides on/off hook and pulse dial function (30-0070S only).
Far end signaling (wink, delay, answer) is indicated via a front panel LED.
With the use of the Model AM47XT accessory printer you are able to print or plot your results. When connected to the optional RS232 port, the printer can run a hard copy of any test set-up and/or measurement result. When making envelope, group delay or frequency response tests, the Print Lock feature may be engaged for an automatic printed record of the test results in both graphic and numeric form.
Through its DTMF dialing capability the AM5XT-200 can command the Ameritec Model AM440 Remote Test Partnerô to remotely:
Open Tip and Ring for foreign voltage sets
Ground Tip and Ring for resistance to ground measurements
Transmit preset tones from 304Hz to 384kHz, slopes, sweeps
Short Tip to Ring to measure loop resistance
Quiet Termination for Noise or Impulse Noise Testing
Test for Load Coils