The JDSU PFA-35 is a handheld digital communications analyzer designed for field installation, commissioning, and maintenance of E1 and data circuits. This battery-operated instrument delivers comprehensive testing across multiple legacy interfaces and protocols, supporting data rates from 50 bps to 2 Mbps. Equipped with an intuitive menu-driven interface and softkey controls, the PFA-35 enables technicians to diagnose circuit performance, verify signal quality, and generate fault conditions with minimal setup time.
Technical Specifications
Data Circuit Testing
• Supported interfaces: V.11/RS-442, V.24/RS-232, V.35, V.36/RS-449, EIA-530, G.703 (balanced and unbalanced)
• Data rates: 50 bps to 2 Mbps
• BERT on V.11/RS-442, V.24/RS-232, V.35, V.36/RS-449, EIA-530, and G.703 interfaces
• Framed and unframed testing modes
• X.50, X.50 PCM, HCM, and V.110 subrate circuit testing
• DCE/DTE emulation for protocol simulation
• V.24 asynchronous modem testing including round trip delay measurement
E1 Circuit Testing
• Interface: G.703 (balanced and unbalanced)
• Data rate: 2 Mbps
• E1 physical layer: n × 64 kbps BERT, VF testing, round trip delay, and jitter measurement
• E1 service testing: Frame Relay and GSM
• QoS validation to G.821, G.826, and M.2100 ITU-T recommendations
• PCM30, PCM30 CRC, PCM31, and PCM31 CRC frame structure monitoring and generation
• G.704 framed 2 Mbit/s signal testing
• n × 64 kbps timeslot drop and insert functionality
– Key Features
• Autoconfigure function detects and configures to circuit parameters with single-key operation
• Troubleshooter page displays instant network performance overview
• Histogram analysis of time-related errors
• Alarm and error status LEDs for problem identification
• Remote operation via V.24/RS-232 interface
• Test results storage and printing capability
• Downloadable software options extend testing functionality
– Electrical
• Internal rechargeable NiCd batteries: 8 to 10 hours continuous operation
• External mains adapter/charger: US, Euro, UK, or Australian voltage compatible
– Typical Applications
Field commissioning of legacy telecommunications infrastructure, circuit verification during installation and maintenance, protocol compliance testing, and troubleshooting of data and E1 service performance.


















