The Cisco NM-1FE1CT1-CSU= is a versatile network interface module designed to offer both Ethernet and T1 connectivity in a single device. It features one Fast Ethernet port and one Channelized T1/ISDN PRI port, making it suitable for various networking requirements such as WAN aggregation and internet access. The T1 interface can be configured for both channelized T1 or ISDN Primary Rate Interface (PRI), offering flexibility for different connectivity needs.
The Channelized T1 port is equipped with an integrated CSU/DSU (Channel Service Unit/Data Service Unit), which provides essential functions such as signal regeneration and line conditioning, removing the need for an external CSU/DSU device. This integration reduces complexity in network setups and helps save space in a rack-mount environment.
In terms of network performance, the Fast Ethernet port supports up to 100 Mbps data transfer rates, while the T1 port offers standard T1 transfer speeds of up to 1.544 Mbps. This combination is highly useful for organisations that need WAN and Ethernet connectivity, providing a cost-effective solution in a single module.
Another feature of the Cisco NM-1FE1CT1-CSU= is its hot-swappable functionality, which ensures the module can be replaced or upgraded without the need to power down the network device, minimising downtime during maintenance. This allows IT administrators to maintain network uptime efficiently.
Overall, the Cisco NM-1FE1CT1-CSU= module provides robust and flexible networking capabilities for a combination of T1/ISDN PRI and Ethernet connections within a single interface solution, particularly designed for use on Cisco routers.
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