Cisco EM-HDA-3FXS/4FXO | High Density VoiceFax Network Module

1. Compatibility: Cisco 2821, 2851, 3825, and 3845 Integrated Services Routers
2. Ports: 3 FXS and 4 FXO ports
3. Voice Codecs: G.711, G.723.1, G.726, G.729A/B, iLBC
4. Fax Support: T.38 Fax Relay, Group 3 fax support
5. Voice Quality: Echo cancellation, noise reduction, and comfort noise generation
6. Signaling Protocols: SCCP, SIP, H.323
7. Maximum Distances: FXS - 6,000 ft (1,800 m), FXO - 12,000 ft (3,600 m)
8. Power Consumption: 30W maximum
9. Operating Temperature: 32 to 104°F (0 to 40°C)
10. Dimensions: 7 x 7 x 1.5 inches (17.78 x 17.78 x 3.81 cm)
11. Weight: 1.5 pounds (0.68 kg)
12. Certification: FCC Part 15 Class B, ICES-003 Class B, EN55022 Class B, CISPR22 Class B, VCCI Class B, AS/NZS 3548 Class B, and CE

Helpful Notes:
1. The EM-HDA-3FXS/4FXO module is ideal for small to medium-sized businesses that require high-density voice and fax capabilities.
2. The module supports a wide range of voice codecs, ensuring compatibility with various VoIP systems.
3. The module's echo cancellation and noise reduction features ensure high-quality voice calls.