PCM Transcoder

The HC-5560 digital line transcoder provides encoding and decoding of pseudo ternary line code substitution schemes. Unlike other industry standard transcoders, the HC-5560 provides four worldwide compatible mode selectable code substitution schemes, including HDB3 (High Density Bipolar 3), B6ZS, B8ZS (Bipolar with 6 or 8 Zero Substitution) and AMI (Alternate Mark Inversion).

FEATUREs
• Single 5V Supply . . . . . . . . . . . . . . . . . . . . . .  10mA (Typ)
• Mode Selectable Coding Including:
- AMI (T1, T1C)
- B8ZS (T1)
- HDB3 (PCM30)
• North American and European Compatibility
• Simultaneous Encoding and Decoding
• Asynchronous Operation
• Loop Back Control
• Transmission Error Detection
• Alarm Indication Signal
• Replaces MJ1440, MJ1471 and TCM2201 Transcoders

APPLICATIONs
• North American and European PCM Transmission Lines where Pseudo Ternary Line Code Substitution Schemes are Desired
• Any Equipment that Interfaces T1, T1C, T2 or PCM30 Lines Including Multiplexers, Channel Service Units,
(CSUs) Echo Cancellors, Digital Cross-Connects (DSXs), T1 Compressors, etc.
• Related Literature
- AN573, The HC-5560 Digital Line Transcoder