HDLC (High-Level Data Link Control)

HDLC (High-Level Data Link Control) is used at the Data Link Layer and is the default encapsulation protocol on Cisco equipment.

Wrong Mode / Baud Rate or Parity causes decode failure. For channel-prefix differences, see Settings.

Decode Settings

Data: Assign the HDLC signal channel.
Option:
- Mode: Decode method (NRZI-0 / NRZI-1 / UART N-8-1 / NRZ-Space / IEEE 802.3). Default: NRZI-0.
- Parity: Parity (Low / High). Default: Low.
- Baud Rate: Baud rate. Default: 9600.
- Address Bits: Address bit length (8 / 16). Default: 8.
- Control Bits: Control bit length (8 / 16). Default: 8.
- FCS Bits: FCS (Frame Check Sequence) bit length (16 / 32). Default: 16.
- Order: Bit transmission order (LSB / MSB). Default: LSB.