The Cisco IB9-CX21DT is a serial interface cable designed to connect Cisco routers and communications equipment to X.21 DTE (Data Terminal Equipment) interfaces. It is commonly used in WAN and leased-line environments where X.21 serial connectivity is required. The cable provides reliable data transmission between Cisco networking equipment and X.21-compatible telecommunications devices. Cisco X.21 cables are available in both DTE and DCE variants, with the DTE version using a male DB-15 X.21 connector.
Key Features
- Cisco original serial interface cable
- DB9 to X.21 DTE connectivity
- Supports X.21 WAN communications
- Designed for carrier and enterprise networking
- High-quality shielded cable construction
- Compatible with Cisco serial interfaces requiring X.21 DTE connections
Technical Specifications
- Manufacturer: Cisco Systems
- Part Number: IB9-CX21DT
- Product Type: Serial Interface Cable
- Interface A: DB9
- Interface B: X.21 DTE (DB15 Male)
- Cable Type: X.21 Serial Cable
- Application: WAN and leased-line connectivity
- Compatible Equipment: Cisco routers and serial interface modules supporting X.21 communication
90 DAY'S
