| Marketing Description |
| These Cisco modules provide enterprises, managed services providers, and service providers the ability to directly connect public-switched telephone networks and existing telephony equipment to Cisco compatible routers. |
| Product Features |
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Robust connectivity
Equipped with 16 FXS and 2 FXO ports, this Cisco High-Density Analog Voice Service Module ensures versatile connectivity options for a wide range of voice applications, facilitating seamless communication across networks.
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Enhanced reliability
Features such as Hot Standby Router Protocol (HSRP) support and FXO failover bypass ports provide a fail-safe communication environment, ensuring business continuity and minimal downtime.
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Comprehensive standards compliance
Adhering to a broad spectrum of compliance standards including NEBS level 3, FCC, and more, this module meets rigorous requirements for safety, reliability, and environmental sustainability.
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Advanced voice features
With support for Digital Signal Processing and extended loop support (FXS-E), this module delivers clear, high-quality voice transmissions, enhancing the overall communication experience.
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Efficient network management
Support for remote management protocols such as SNMP, HTTP, and Telnet allows for efficient configuration and monitoring, simplifying network administration tasks.
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| General |
| Device Type |
Expansion module |
| Form Factor |
Plug-in module |
| Networking |
| Ports |
FXS x 16 + FXO x 2 |
| Connectivity Technology |
Wired |
| Network / Transport Protocol |
DHCP, DNS, RTP, RTCP |
| Remote Management Protocol |
SNMP, Telnet, HTTP, TFTP |
| Status Indicators |
Status |
| Features |
RADIUS support, Digital Signal Processing, HSRP support, OIR support, FXS-E (extended loops) support, FXO failover bypass ports |
| Compliant Standards |
G.711, G.729a, G.726 |
| Expansion / Connectivity |
| Interfaces |
16 x FXS - RJ-21
2 x FXO - RJ-21 |
| Miscellaneous |
| Compliant Standards |
NEBS level 3, CISPR 22 Class A, CISPR 22 Class B, CISPR 24, EN55024, EN50082-1, EN55022 Class B, EN 61000-6-1, AS/NZS 60950-1, CS-03, FCC CFR47 Part 15, UL 60950-1, IEC 60950-1, EN 60950-1, TBR21, AS/NZS 3548 Class A, VCCI V-3, TIA/EIA/IS-968, GR-1089-CORE, GR-63-CORE, CNS 13438, ICES-003 issue 4, EN 55022 Class A, EN 300 386, CAN/CSA-C22.2 No. 60950-1, ES 201 970, GR-78-CORE |
| Power |
| Power Consumption Operational |
70.32 Watt |
| Dimensions & Weight |
| Width |
18.9 cm |
| Depth |
19.3 cm |
| Height |
4.02 cm |
| Weight |
900 g |
| Environmental Parameters |
| Min Operating Temperature |
0 °C |
| Max Operating Temperature |
40 °C |
| Compatibility Information |
| Designed For |
Cisco 4451-X, 4451-X Application Experience, 4451-X Integrated Services Router, 4451-X Integrated Services Router Security Bundle, 4451-X Integrated Services Router Voice and Video Bundle, 4451-X Integrated Services Router Voice Security Bundle
Cisco Integrated Services Router 4331, 4351 |
