| Product Type | Smart Serial X.21 DTE Cable |
| Form Factor | External Cable |
| Cable Length | 3 meters |
| Connector Type | Smart Serial to X.21 Male |
| Data Transmission Standard | X.21 |
| Compatibility | Cisco WIC-2T, WIC-2A/S WAN Interface Cards |
| Application | Synchronous serial data communication |
| Product Weight | 0.45 kg |
| Cable Jacket Material | PVC |
| Purpose | Connects Cisco network modules or interface cards to X.21 DTE devices |
CISCO CAB-SS-X21MT= Smart Serial X.21 DTE Cable, 3m

Key Benefits
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- Designed specifically for Cisco WIC-2T and WIC-2A/S modules, ensuring full compatibility.
- TAA compliance makes the cable suitable for government procurement and regulated industries.
- Made in the United States, supporting high manufacturing standards and regulatory alignment.
Product Overview
The CISCO CAB-SS-X21MT= is a high-quality Smart Serial X.21 DTE interface cable engineered for seamless connectivity between Cisco WAN Interface Cards (WIC-2T, WIC-2A/S) and network devices. Featuring a 3-meter length and male connector, it supports the X.21 standard for synchronous communication. Manufactured in the U.S. and TAA-compliant, it's a dependable option for secure, government-ready environments and mission-critical networks.
Specifications
Product Overview
Physical & Environmental
| Cable Color | Black |
| Cable Diameter | 6.1 mm (approx.) |
| Operating Temperature Range | 0°C to 40°C |
| Storage Temperature Range | -25°C to 70°C |
| Operating Humidity Range | 10% to 85% (non-condensing) |
| Storage Humidity | 5% to 95% (non-condensing) |
| Flammability Rating | CMG-rated jacket |
Cloud Management & Licensing
| Cloud Managed | No |
| License Requirement | Not Applicable |
| Bundled Software | None |
Interfaces
| Interface Type | Smart Serial to X.21 DTE |
| Connector A | 26-pin Smart Serial |
| Connector B | 15-pin X.21 Male |
| Connector Gender | Male to Male |
| Transmission Mode | Synchronous |
| Compatible Protocols | X.21 |
| Connector Contacts Plating | Gold |
| Maximum Data Rate | Up to 8 Mbps (X.21 standard) |
| Cable Type | Serial Cable |
Compliance & Origin
| Country of Origin | United States |
| TAA Compliant | Yes |
| RoHS Compliant | Yes |
| Certifications | UL, CSA |
| Environmental Standards | Cisco Green compliant |
Advanced Security Features
| Encryption Support | No |
| Built-in Security Features | None |