High-Speed, Point-To-Point Connections (Stu-R); High-Speed Internet Access (Stu-C); Stu-C/Stu-R Mode; Checking The Current Mode - ZyXEL Communications IES-22A User Manual

Chapter 1 Introducing the IES-708-22A

1.1.2 High-speed, Point-to-point Connections (STU-R)

Connect the IES-708-22A to another DSLAM, such as a chassis-based system, to create a
cost-effective, high-speed connection for high-bandwidth applications, such as
videoconferencing and distance learning. In this case, the IES-708-22A is the STU-R device.
In the following example, the IES-708-22A connects a branch to the existing chassis-based
system at headquarters.

Figure 2 End-to-end, High-speed Network Connections (STU-R)

STU-R

1.1.3 High-speed Internet Access (STU-C)

Connect the IES-708-22A to a SHDSL device such as a router, switch, or modem to provide
high-speed Internet access. In this case, the IES-708-22A is the STU-C device.

Figure 3 High-speed Internet Access (STU-C)

1.2 STU-C/STU-R Mode

The IES-708-22A can run in STU-C mode or in STU-R mode. This mode is determined by the
firmware the IES-708-22A is running.
• The STU-C firmware version contains AYS; for example, V3.52(AYS.0)b2.
• The STU-R firmware version contains AYT; for example, V3.52(AYT.0)b2.

1.2.1 Checking the Current Mode

Look at the model name or the firmware version to find out whether the IES-708-22A is in
STU-C mode or in STU-R mode.
40
STU-C
IES-708-22A User's Guide
STU-C