Programming instructions

259
Hardware Reference
Controller Cabinet Numbering
• Cabinet 1 (hardcoded): internal.
• Cabinets 2 to 5 (hardcoded): CIM ports, from left to right (not CX/CXi).
• Cabinets 6 to 13 (6 to 9 for the MX and 100-user): module ports (left
to right).
T1/E1 Combo Card
The T1/E1 combo module provides T1 trunking and DSP functionality for
the CX with Release 6.0 software and for all controllers (266/300 MHz
minimum) with Release 7.0 software. The DSP provides resources for
CLASS tone generation, Record a Call conferences, DMTF receivers,
voice compression. The card also provides voice echo cancellation.
Figure 43: T1/E1 Combo Card (prior to Release 7.0)