Troubleshooting guide

Table Of Contents
170
3300 ICP Technician’s Handbook
Figure 39: Slide in and seat module (AX)
Controller Module Installation Notes
DSP Module
Refer to “Increasing DSP Resources” on page 287.
Make sure that you have sufficient compression licenses before
installing DSP modules for compression.
Dual Fiber Interface Module (FIM)
Ensure that the type of the optical interface matches that of the mating
unit (820 nm multi-mode, 1300 nm multi-mode, or 1300 mn
single-mode).
Echo Canceller
The CX, CXi, CX II, CXi II, MXe, MXe Server, and AX contain echo
cancellers on the main board that are sufficient to handle normal traffic
conditions.
Framers
Embedded T1/E1 (for PRI, T1/D4, or BRI)
You can add embedded T1/E1 (for PRI, T1/D4, or MSDN/DPNSS) or
embedded BRI to a controller by adding one to three framer modules
(Dual T1/E1, T1/E1 Combo, or Quad BRI). (See “Hardware Part
Numbers” on page 371 for the part number of the Framer Modules.)