Hardware Technical Reference Manual
Field Upgradeable and Replaceable Controller Modules
(AX, MXe, CX/CXi, CX II/CXi II)
Modules are field replaceable units (FRUs) that expand the functionality and capacity of the
controllers. Communication interface modules—the Dual FIM, T1/E1 Framer, T1/E1 Combo
Card, Quad BRI Framer, and Quad CIM—are installed in the slots with external access.
Two analog boards are available for the MX and CX/CXi and one for the MXe. The CX/CXi and
MXe use the same analog main board. The MX analog boards may not be installed in the
CX/CXi or MXe. The analog boards provide embedded analog capability on the controller.
Caution:These modules are not designed for hot insertion into a powered-up controller
card. Refer to the 3300 ICP Technician’s Handbook for installation procedures.
This section covers the following modules and boards. Table 7 shows which modules and
boards are supported on each controller.
• Stratum 3 clock module (see page 32)
• MXe Processor (E2T/RTC) (see page 32)
• Application Processor Card - APC-MXe (see page 61)
• Application Processor Card - APC-CXi (see page 62)
• Digital Signal Processor modules (see page 32)
• Echo Canceller module (see page 33)
• Quad Copper Interface Module (see page 33)
• Dual Fiber Interface Module (see page 34)
• Dual T1/E1 Framer Module (see page 35)
• T1/E1 Combo card (see page 38)
• Quad Basic Rate Interface Framer Module (see page 40)
• Analog Main Board and Analog Option Board (see page 42)
• 4 + 12 Port Combo card, 24 Port ONS card, and 16 Port ONS card - AX (see page 42).
These cards are also used on the ASU II.I
Table 7: Support for FRU modules by controller
MXe Server MXe CX/CXi CX II/CXi II AX
Stratum 3 clock
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