These are high-speed serial interfaces that will connect to a Telco's equipment which provides you with leased-line or frame-relay connectivity.
Yes it is.
A dual wan router combines two network connections into one. Cisco and Netgear both offer these models of router.
The Cisco 2801 2-Port 10/100 Wired Router was released in the year 2004. You can find the Cisco 2801 router for sale used on eBay starting at $485.00.
console port
Ethernet port
Data Terminal Eqipment (DTE)
Usually it has "WAN" or "Internet" next to it. If you still cannot find that, refer to the router's manual to find the correct port.
make a connection from the router's console port to your laptop's serial port and configure the router from your laptop.
Take a look at the back of your router. It typically will be labeled "WAN". Refer to your user manual for detailed information.
The Cisco 2900 router has a number of impressive features. It offers speeds at up to 75 Mbps, 50 LAN switch ports, 4 enhanced high speed WAN interface card slots.
whenever you log into your cisco router....
It's a cable used to connect from a Cisco router's DB60 serial port to a telecommunication company's equipment which provides you with a data link.