McDewey

© 2019 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 8 of 13 Figure 5.
Cisco FXO, FXS, and Combo 2FXS/4FXO NIMs Compatible with VG450

Following Analog Voice NIM modules are supported in the NIM slot for VG450 Table 4. Analog Voice NIM module support on VG450 Part Number Number of Ports Product Description NIM-2FXO 2 2-port Network Interface Module - FXO (Universal) NIM-4FXO 4 4-port Network Interface Module - FXO (Universal) NIM-2FXSP 2 2-Port Network Interface Module - FXS, FXS-E and DID NIM-4FXSP 4 4-Port Network Interface Module - FXS, FXS-E and DID NIM-2FXS/4FXOP 6 2-Port FXS/FXS-E/DID and 4-Port FXO Network Interface Module NIM-4E/M 4 4-Port E/M Network Interface Module NIM-2BRI-NT/TE 2 2-Port BRI Network Interface Module NIM-4BRI-NT/TE 4 4-Port BRI Network Interface Module Additionally, VG450 support T1E1 Voice Network Interface Modules in NIM slots for VG450.
The T1/E1 modules contain an onboard Cisco Packet Voice Digital Signal Processor Module 4 (PVDM4) slot, which requires a fourth-generation PVDM4 module. A PVDM4 on the T1/E1 module is necessary for the voice features.
The PVDM4 also provides for echo cancellation of up to 128-ms echo-tail length for demanding network conditions. Figure 6.
Cisco T1/E1 NIMs Compatible with VG450

Table 5. Digital Voice NIM module support on VG450 Part Number Number of Ports Product Description NIM-1MFT-T1/E1 1 1 port Multi-flex Trunk Voice/Clear-channel Data T1/E1 Module NIM-2MFT-T1/E1 2 2 port Multi-flex Trunk Voice/Clear-channel Data T1/E1 Module NIM-4MFT-T1/E1 4 4 port Multi-flex Trunk Voice/Clear-channel Data T1/E1 Module NIM-8MFT-T1/E1 8 8 port Multi-flex Trunk Voice/Clear-channel Data T1/E1 Module