Equipment information

Telecommunications Techniques Corporation T-Berd 107 Analyzer
Manufacturer:
Model:
T-Berd 107
Date:
1990
Category:
Group:
Description:
Carrier Analyzer

Information

The T-BERD 107 T-Carrier Analyzer is a hand-held, battery or AC-operated Test Set for T1 and TIC circuits. Packaged Lq in a compact case, the T-BERD 107 's operating panel features test mode selection switches, alarm and signal status LED indicators, and a liquid crystal display with backlighting capability. The T-BERD 107 also contains a printer port for providing hard copy test results. Two T-BERD 107 options are available: a T1 Channel Monitor Option and a TI/TIC Transmitter Option. The T1 Channel Monitor Option provides audio and data monitoring of a user-selected channel. The TfTC Transmitter Option provides the ability to transmit framed and unframed test patterns, as well as loop smart jacks and CSUs. Both options are field-installable in the T-BERD 107 lid. The T1 Channel Monitor Option and the T1/T1C Transmitter Option are discussed in detail in Appendices A and B, respectively. The T-BERD 107 is designed for use at any T-Carrier access point, whether at a central office. DSX patch bay, customer service unit, or a repeater. It monitors T1 or TIC circuits, verifies error and alarm conditions, measures signal quality, and identifies equipment failures. The T-BERD 107 can perform both in-service and out-of-service testing, and can be set for either continuous or timed tests. The T-BERD 107 offers these key features and characteristics: • Automatic synchronization to D4. ESF. and SLC*-96 framing patterns. • Automatic recognition of and synchronization to the quasirandom signal source (QRSS), the 3 IN 24, 1:7. and ALL ONES patterns. • Extended Receiver Range that allows testing of T1 signals at any point along a span line, including low-level signals (down to -35 dB) at repeater inputs. • An optional T1/T1C Transmitter for performing out-of service testing. • Printer port and buffer for storing and printing hard copy test results. • An optional T1 Channel Monitor to test individual DSO channels within the T1 frame. • Signal analysis with signal level and recovered clock frequency measurements.

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User Manual
Manual Type:
User Manual
Pages:
96
Size:
2.64 Mbytes (2766076 Bytes)
Language:
english
Revision:
A
Manual-ID:
ML11086-02
Date:
1990 09 01
Quality:
Scanned document, all readable.
Upload date:
2017 01 10
MD5:
d65a904dc029f891003b58420f188e5d
Downloads:
512

Information

SECTION 1 GENERAL ... 1-1 SECTION 2 COMPOSITION AND SPECIFICATIONS 2.1 Composition ... 2-1 2.2 Specifications ... 2-2 2.3 Peripheral Devices and Accessories ... 2-6 2.3.1 MH680A/B Tracking Generator ... 2-6 2.3.2 MH648A Preamplifier ... 2-7 2.3.3 Artificial Mains Network ... 2-8 2.3.4 High Impedance Probe ... 2-8 2.3.5 Battery Pack and DC-DC Converter ... 2-9 2.3.6 Frequency Counter ... 2-9 2.3.7 Antennas ... 2-10 2.3.8 Packet III Personal Technical Computer .. 2-11 2.3.9 Accessories ... 2-12 SECTION 3 OPERATION 3.1 Handling Precautions ... 3-1 3.1.1 Power supply ... 3-1 3.1.2 Installation site environmental conditions ... 3-1 3.1.3 Maximum input level ... 3-2 3.2 Front and Rear Panel Controls ... 3-3 3.3 Description of Controls ... 3-7 3.3.1 FREQUENCY ... 3-7 (1) COARSE-FINE dial ... 3-7 (2) START FREQ and CENTER FREQ ... 3-8 (3) FREQ ZERO ADJ ... 3-8 3.3.2 MODE ... 3-9 (1) Function ... 3-9 (2) DATA ... 3-9 * (3) REFERENCE LEVEL ... 3-9 (4) MARKER LEVEL ... 3-10 (5) FREQ SPAN ... 3-11 (6) INPUT ATTEN ... 3-12 (7) RBW ... 3-13 (8) SWEEP TIME ... 3-13 3.3.3 COUPLED TO SPAN ... 3-14 3.3.4 COUPLED TO REF ... 3-16 3.3.5 VIDEO Filter ... 3-17 3.3.6 SCALE ... 3-18 3.3.7 TRIG ... 3-19 3.3.8 DISPLAY UNCAL ... 3-20 3.3.9 GAIN ADJ ... 3-20 3.3.10 INTENSITY ... 3-21 3.3.11 GP-IB ... 3-21 3.3.12 REFERENCE LEVEL (rear panel) ... 3-22 3.4 Measurement ... 3-23 3.4.1 Measurement preparation ... 3-23 (1) Power-ON ... 3-23 (2) Gain calibration ... 3-24 (3) Frequency display zero calibration ... 3-25 (4) TRACE ROTATION and V. POSITION adjustments ... 3-25 3.4.2 Fundamental measurement ... 3-26 3.4.3 Measurement with improved frequency accuracy ... 3-27 (1) Measurement with improved frequency accuracy using CAL OUT signal ... 3-27 (2) Measurement with improved frequency accuracy using MH680B and frequency Counter ... 3-28 3.4.4 Spurious measurement ... 3-32 (1) Harmonics measurement with fast operation ... 3-32 (2) Inter modulation product measurement ... 3-34 (3) Random spurious signal measurement . 3-34 (4) Spectrum purity measurement ... 3-34 3.4.5 Modulated wave measurement ... 3-35 (1) Procedure ... 3-35 (2) AM wave measurement ... 3-35 (3) AM wave measurement when modulation frequency is low ... 3-37 (4) FM wave measurement ... 3-3 8 (5) PAM wave measurement ... 3-39 (6) Audio modulation signal monitoring ... 3-40 3.4.6 Field strength measurement ... 3-42 (1) Measurement in dBU units ... 3-43 (2) Direct reading measurement of field strength using specified antenna ... 3-43 (3) Antenna coefficient display ... 3-44 3.4.7 Radio interference (EMI) measurement ... 3-44 3.4.8 Measurement using GP-IB ... 3-44 SECTION 4 DAILY MAINTENANCE AND STORAGE 4.1 Daily Maintenance ... 4-1 4.2 Storage ... 4-1 4.2.1 Storage precautions ... 4-1 4.2.2 Recommended storage conditions ... 4-2 SECTION 5 PRINCIPLES OF OPERATION 5.1 Introduction ... 5-1 5.2 Frequency Conversion Circuit ... 5-2 5.3 IF Circuit ... 5-2 5.4 Detection and Video Circuits ... 5-3 5.5 Sawtooth Generator and Local Oscillator Control Circuit ... 5-3 5.6 Controller ... 5-4 SECTION 6 PERFORMANCE TEST 6.1 Introduction ... 6-1 6.2 Equipment Required for Performance Test ... 6-2 6.3 Preliminary Operations ... 6-5 6.4 Performance Test ... 6-5 6.4.1 CAL Output ... 6-5 6.4.2 Frequency display accuracy ... 6-8 6.4.3 Frequency span accuracy ... 6-11 6.4.4 Resolution bandwidth selectivity ... 6-13 6.4.5 Frequency stability ... 6-17 6.4.6 Residual FM ... 6-18 6.4.7 Sideband noise ... 6-21 6.4.8 LOG scale linearity ... 6-23 6.4.9 Reference level accuracy ... 6-25 6.4.10 Frequency response ... 6-27 6.4.11 Average noise level ... 6-30 6.4.12 2nd and 3rd harmonics distortion ... 6-31 6.4.13 Residual spurious response ... 6-34 6.4.14 Resolution bandwidth gain variation ... 6-35 6.4.15 RF input impedance (terminal) ... 6-37 6.4.16 Power consumption ... 6-41 6.4.17 Data sheets ... 6-42

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