Wandel & Goltermann PCM-4

| Attribute | Value |
|---|---|
| Interface Type | PCM (Pulse Code Modulation) |
| Transmission Rate | 2.048 Mbit/s (E1) |
| Number of Channels | 30 voice channels (B-channels) + 2 signaling channels |
| Measurement Functions | Bit error rate testing, signal level measurement, frame alignment monitoring |
| Connector Type | BNC and/or RJ-45 interfaces for E1 connections |
| Impedance | 75 Ohm (coaxial) / 120 Ohm (balanced) |
| Line Code | HDB3 (High Density Bipolar 3) |
| Power Supply | AC 100–240V / DC battery operation supported |
| Standards Compliance | ITU-T G.703, G.704, G.706 |
| Display | Built-in LCD display for real-time measurement readout |
Wandel & Goltermann PCM-4 Options:
- PCM-4 - BN 984/00.01 - Codirectional 64 kbit/s input
- PCM-4 - BN 984/00.02 - Codirectional 64 kbit/s output
- PCM-4 - BN 984/00.05 - Serial 64 kbit/s TTL input
- PCM-4 - BN 984/00.06 - Serial 64 kbit/s TTL output
- PCM-4 - BN 984/00.07 - Parallel 64 kbit/s TTL input
- PCM-4 - BN 984/00.08 - Parallel 64 kbit/s TTL output
- PCM-4 - BN 984/00.10 - Return Loss and Longitudinal Conversion Transfer Loss Bridge 600/900 Ω
- PCM-4 - BN 984/00.11 - Return Loss and Longitudinal Conversion Transfer Loss Bridge 600/850 Ω
- PCM-4 - BN 984/00.34 - Analog generator output impedance modified to Zout ≈ 0 Ω in place of complex impedance
- PCM-4 - BN 984/00.41 - Software retrofitted to the latest status
- PCM-4 - BN 958/21 - <IEC 625> Interface Card with IEEE 488 connector and connecting cable K 420
| Model | PCM-4 |
|---|
The Wandel & Goltermann PCM-4 is a pulse-code modulation analyzer module designed for evaluating digital transmission paths. It supports signal analysis over both fiber and copper within PCM systems, enabling thorough bit-pattern assessments and BER testing in telecom environments. The unit integrates smoothly with communication analyzers for versatile diagnostics.
Ideal for testing digital telecom channels, the PCM-4 offers accurate signal integrity and BER measurements across various transmission media.
Testwall can supply the used Wandel & Goltermann PCM-4, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Wandel & Goltermann PCM-4.





