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February 2003 3-19
1000-A2-GN22-00 3. Installing the CPX-1000
Install Modules
in CPX
Each CPX is usually preloaded with these modules:
1 MP Card (MP)
2 CP cards (CP)
2 HSC card
Some modules may be packed in a separate shipping container:
T1 Modules or STS-1 Module
STS-1 ECAC Module
ATM OC-3 Module (ATM)
Echo Cancellation Module (EC)
Echo Cancellation and Compression Module (ECAC)
The EC and ECAC modules can be used with Octal T1 and STS-1
modules to provide echo cancellation, or echo cancellation and
compression. You can identify each card by its abbreviation
printed on the face of the top ejector handle. Figure 3–1 shows the
front view of the typical CPX shelf (shown configured with the 12-
port T1 ECAC and OC-3 ATM modules).
Slots 6–10 are reserved for the following cards:
MP card – Slot 6
CP cards – Slots 8 and 9
HSC cards – Slots 7 and 10
Install the ATM cards and the PSTN cards in opposite ends of the
chassis. For example, if you install the ATM cards in slots 1–4, then
install the PSTN cards in slots 11–16. Install EC and ECAC cards
near the PSTN cards.