HP / Agilent 37722A Telecom Analyzer

The HP/Agilent 37722A Telecom Analyzer is a portable bit error rate and signal measurement instrument for in-service and out-of-service testing on CEPT digital circuits and services. It performs framed and unframed pattern generation and measurement at 2 Mb/s, with support for n × 64 kb/s testing. The field-portable design enables rapid deployment for installation, maintenance, and troubleshooting across telecommunications networks.

## Technical Specifications

**Bit Rates & Clocking**
• Primary operation: 2.048 Mb/s, 64 kb/s
• Optional rates: 8.448 Mb/s (Option 002), 704 kb/s (Option 003), sub-64 kb/s (Option 005)
• Internal clock: 2.048 MHz, 64 kHz (± 10 ppm)
• Datacom synchronous timing from 50 b/s

**Measurement Modes**
• In-service and out-of-service bit error measurements
• Framed and unframed pattern generation and analysis
• n × 64 kb/s testing
• Timeslot access with signaling bit display
• Control-circuit timing analysis with transition diagrams
• Event-based storage in text and graphic formats
• ITU-T M.2110 and M.2120 analysis (Option 210)
• Relative frequency and bit slip measurement (Option 010)

**Interfaces & Connectivity**
• Telecom: ITU-T G.703 and G.823 compliant; 75 Ω unbalanced BNC connectors (replaceable with Siemens connectors via Option 004)
• Datacom (with HP 37732A module): V.24, V.11/X.21-leased, V.35 interfaces
• DTE/DCE terminal emulation with isolation switches and four-state indicators
• Control-circuit support: RS, CS, TR/DTR, DM/DSR, RR/RLSD
• Built-in V.24 breakout box and internal synthesizer
• Remote control: RS-232-C standard; HP-IB option (Option H02)

## Key Features

• Lightweight field-portable construction
• Timeslot monitor displaying all signaling bits
• Tone generation and measurement (Options 005, 006)
• Sub-64 kb/s testing to ITU-T X.50 and X.58 (Option 005)
• Rechargeable battery power option (Option B12)
• Distributed network analyzer firmware support (Option USS)

## Typical Applications

• CEPT digital circuit installation and commissioning
• In-service network performance monitoring
• Maintenance troubleshooting and fault isolation
• Timeslot-level signaling analysis
• Control-circuit timing verification

## Compatibility & Integration

Upgrade to HP 37732A Telecom/Datacom Analyzer via HP 15901A Datacom Module (Option 001), adding V.24, V.35, and V.11/X.21-leased interface testing up to 2 Mb/s with BER measurements and control-circuit timing analysis.