Table Of Contents

PVDM Requirements

Default DSP Software Images

PVDM Requirements for MRPs and ASIs

PVDM Requirements

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This appendix lists the packet voice/data module (PVDM) requirements for MRP and ASI cards.

Default DSP Software Images

The type of software image (high-complexity image or medium-complexity image) that is loaded on multiservice route processors (MRPs) and analog station interfaces (ASIs) affects the processing of traffic on these cards. The default values for DSP software images on MRPs and ASIs are as follows:

•High-complexity image. VIC-2DID, VIC-2BRI-NT/TE, VIC-2FXS, VIC-2FXO-M2, VIC-2FXO-M3, VIC-2FXO, VIC-2E/M, VWIC-1MFT-T1, VWIC-1MFT-E1, VWIC-2MFT-T1, and VWIC-2MFT-E1.

•Medium-complexity image. VIC-8FXS (MRP3-8FXS and ASI81) and VIC-16FXS (MRP3-16FXS and ASI160).

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Note The PVDM requirements listed in Table C-1 and in Table C-2 are based on the assumption that you are using the high complexity DSP software image for a particular voice WAN interface card (VWIC) or voice interface card (VIC).

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PVDM Requirements for MRPs and ASIs

Table C-1 lists general guidelines for PVDM requirements for MRPs and ASIs. For detailed guidelines, refer to Table C-2.

Table C-1

Type of Card	Suggested Number of DSPs	Suggested DSP Firmware	Total Voice Channels	Codecs
Analog VICs	1 (PVDM-4)	High-complexity analog	2	All codecs supported
BRI VIC	2 (PVDM-8)	High-complexity digital	4	All codecs supported
ASI81 (slot 0) or MRP3-8FXS (slot 0)	2 (PVDM-8) 4 (PVDM-16)	Medium-complexity analog High-complexity analog	8 8	G.723.1 not supported All codecs supported
ASI160 or MRP3-16FXS	4 (PVDM-16) 8 (2 PVDM-16)	Medium-complexity analog High-complexity analog	16 16	G.723.1 not supported All codecs supported
MFT-T1	4 (PVDM-16) 8 (2 PVDM-16)	High-complexity digital High- complexity digital	24 24	Assumes all channels are using G.711 Assumes all channels are using G.729a
MFT-E1	5 (PVDM-20) 10 (2 PVDM-20)	High-complexity digital High-complexity digital	30 30	Assumes all channels are using G.711 Assumes all channels are using G.729a

General DSP Configuration Rules

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Note On MFT-T1 and MFT-E1 cards, medium-complexity firmware is not recommended, since the use of this firmware limits echo cancellation coverage to 16 ms (also note that 33 percent more voice channels are supported on each DSP when medium complexity firmware is used). In addition, these cards, when installed in MRPs or ASIs, support up to one payload of T1 (24 channels) or E1 (30 channels) voice traffic.

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Note Table 5 does not address transcoding. For information about transcoding considerations, see the "Transcoding" section later in this paper.

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Table C-2 shows the PVDMs that are required for the supported combinations of WAN interface cards (WICs), VWICs, and VICs in MRPs and ASI81s. WICs, VWICs, and VICs are referred to by the abbreviations given in Table 1-1.

As Table C-2 indicates, WICs and data-only VWICs do not require PVDMs.

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Note The typical PVDM configuration for MRP3-16FXSs ASI160s is a PVDM-16 in each of the two PVDM slots.

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Table C-2 PVDM Requirements for Various WIC, VWIC, and VIC Combinations in MRPs and
ASI81s 

WIC, VWIC, or VIC		Codec
Slot 0	Slot 1	G.711	G.723.1, G.726, or G.729a
WIC-1B-ST or WIC-1B-U	WIC-1B-ST or WIC-1B-U	No PVDMs needed	No PVDMs needed
WIC-1B-ST or WIC-1B-U	WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	No PVDMs needed	No PVDMs needed
WIC-1B-ST or WIC-1B-U	WIC-2T or WIC-2A/S	No PVDMs needed	No PVDMs needed
WIC-1B-ST or WIC-1B-U	VWIC-2MFT-T1 (two voice)	Slot 0: PVDM-16 Slot 1: PVDM-16	Slot 0: PVDM-20 Slot 1: PVDM-20
WIC-1B-ST or WIC-1B-U	VWIC-2MFT-E1 (two voice)	Slot 0: PVDM-20 Slot 1: PVDM-20	Slot 0: PVDM-20 Slot 1: PVDM-20
WIC-1B-ST or WIC-1B-U	VWIC-2MFT-T1 (one voice, one data)	Slot 0: PVDM-16	Slot 0: PVDM-16 Slot 1: PVDM-16
WIC-1B-ST or WIC-1B-U	VWIC-2MFT-E1 (one voice, one data)	Slot 0: PVDM-20	Slot 0: PVDM-16 Slot 1: PVDM-16
WIC-1B-ST or WIC-1B-U	VWIC-1MFT-T1 (voice)	Slot 0: PVDM-16	Slot 0: PVDM-16 Slot 1: PVDM-16
WIC-1B-ST or WIC-1B-U	VWIC-1MFT-E1 (voice)	Slot 0: PVDM-20	Slot 0: PVDM-16 Slot 1: PVDM-16
WIC-1B-ST or WIC-1B-U	VWIC-1MFT-T1 (data) or VWIC-1MFT-E1 (data)	No PVDMs needed	No PVDMs needed
WIC-1B-ST or WIC-1B-U	VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	Slot 1: PVDM-4	Slot 1: PVDM-4
WIC-1B-ST or WIC-1B-U	VIC-2BRI-NT/TE	Slot 1: PVDM-8	Slot 1: PVDM-8
WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	No PVDMs needed	No PVDMs needed
WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	WIC-2T or WIC-2A/S	No PVDMs needed	No PVDMs needed
WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	VWIC-2MFT-T1 (two voice)	Slot 0: PVDM-16 Slot 1: PVDM-16	Slot 0: PVDM-20 Slot 1: PVDM-20
WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	VWIC-2MFT-E1 (two voice)	Slot 0: PVDM-20 Slot 1: PVDM-20	Slot 0: PVDM-20 Slot 1: PVDM-20
WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	VWIC-2MFT-T1 (one voice, one data)	Slot 0: PVDM-16	Slot 0: PVDM-16 Slot 1: PVDM-16
WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	VWIC-2MFT-E1 (one voice, one data)	Slot 0: PVDM-20	Slot 0: PVDM-16 Slot 1: PVDM-16
WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	VWIC-1MFT-T1 (voice)	Slot 0: PVDM-16	Slot 0: PVDM-16 Slot 1: PVDM-16
WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	VWIC-1MFT-E1 (voice)	Slot 0: PVDM-20	Slot 0: PVDM-16 Slot 1: PVDM-16
WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	VWIC-1MFT-T1 (data) or VWIC-1MFT-E1	No PVDMs needed	No PVDMs needed
WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	Slot 1: PVDM-4	Slot 1: PVDM-4
WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	VIC-2BRI-NT/TE	Slot 1: PVDM-8	Slot 1: PVDM-8
WIC-2T or WIC-2A/S	WIC-2T or WIC-2A/S	No PVDMs needed	No PVDMs needed
WIC-2T or WIC-2A/S	WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	No PVDMs needed	No PVDMs needed
WIC-2T or WIC-2A/S	VWIC-2MFT-T1 (two voice)	Slot 0: PVDM-16 Slot 1: PVDM-16	Slot 0: PVDM-20 Slot 1: PVDM-20
WIC-2T or WIC-2A/S	VWIC-2MFT-E1 (two voice)	Slot 0: PVDM-20 Slot 1: PVDM-20	Slot 0: PVDM-20 Slot 1: PVDM-20
WIC-2T or WIC-2A/S	VWIC-2MFT-T1 (one voice, one data)	Slot 0: PVDM-16	Slot 0: PVDM-16 Slot 1: PVDM-16
WIC-2T or WIC-2A/S	VWIC-2MFT-E1 (one voice, one data)	Slot 0: PVDM-20	Slot 0: PVDM-16 Slot 1: PVDM-16
WIC-2T or WIC-2A/S	VWIC-1MFT-T1 (voice)	Slot 0: PVDM-16	Slot 0: PVDM-16 Slot 1: PVDM-16
WIC-2T or WIC-2A/S	VWIC-1MFT-E1 (voice)	Slot 0: PVDM-20	Slot 0: PVDM-16 Slot 1: PVDM-16
WIC-2T or WIC-2A/S	VWIC-1MFT-T1 (data)	No PVDMs needed	No PVDMs needed
WIC-2T or WIC-2A/S	VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	Slot 1: PVDM-4	Slot 1: PVDM-4
WIC-2T or WIC-2A/S	VIC-2BRI-NT/TE	Slot 1: PVDM-8	Slot 1: PVDM-8
VWIC-2MFT-T1 (two voice)	WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	Slot 0: PVDM-16 Slot 1: PVDM-16	Slot 0: PVDM-20 Slot 1: PVDM-20
VWIC-2MFT-T1 (two voice)	WIC-2T or WIC-2A/S	Slot 0: PVDM-16 Slot 1: PVDM-16	Slot 0: PVDM-20 Slot 1: PVDM-20
VWIC-2MFT-T1 (two voice)	VWIC-1MFT-T1 (data)	Slot 0: PVDM-16 Slot 1: PVDM-16	Slot 0: PVDM-20 Slot 1: PVDM-20
VWIC-2MFT-T1 (two voice)	VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	Slot 0: PVDM-16 Slot 1: PVDM-4	Slot 0: PVDM-20 Slot 1: PVDM-4
VWIC-2MFT-T1 (two voice)	VIC-2BRI-NT/TE	Slot 0: PVDM-16 Slot 1: PVDM-8	Slot 0: PVDM-20 Slot 1: PVDM-8
VWIC-2MFT-E1 (two voice)	WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	Slot 0: PVDM-20 Slot 1: PVDM-20	Slot 0: PVDM-20 Slot 1: PVDM-20
VWIC-2MFT-E1 (two voice)	WIC-2T or WIC-2A/S	Slot 0: PVDM-20 Slot 1: PVDM-20	Slot 0: PVDM-20 Slot 1: PVDM-20
VWIC-2MFT-E1 (two voice)	VWIC-1MFT-E1 (data)	Slot 0: PVDM-20 Slot 1: PVDM-20	Slot 0: PVDM-20 Slot 1: PVDM-20
VWIC-2MFT-E1 (two voice)	VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	Slot 0: PVDM-20 Slot 1: PVDM-4	Slot 0: PVDM-20 Slot 1: PVDM-4
VWIC-2MFT-E1 (two voice)	VIC-2BRI-NT/TE	Slot 0: PVDM-20 Slot 1: PVDM-8	Slot 0: PVDM-20 Slot 1: PVDM-8
VWIC-2MFT-T1 (one voice, one data)	WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	Slot 0: PVDM-16	Slot 0: PVDM-16 Slot 1: PVDM-16
VWIC-2MFT-T1 (one voice, one data)	WIC-2T or WIC-2A/S	Slot 0: PVDM-16	Slot 0: PVDM-16 Slot 1: PVDM-16
VWIC-2MFT-T1 (one voice, one data)	VWIC-1MFT-T1 (voice)	Slot 0: PVDM-16 Slot 1: PVDM-16	Slot 0: PVDM-20 Slot 1: PVDM-20
VWIC-2MFT-T1 (one voice, one data)	VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	Slot 0: PVDM-16 Slot 1: PVDM-4	Slot 0: PVDM-20 Slot 1: PVDM-4
VWIC-2MFT-T1 (one voice, one data)	VIC-2BRI-NT/TE	Slot 1: PVDM-16 Slot 1: PVDM-8	Slot 0: PVDM-20 Slot 1: PVDM-8
VWIC-2MFT-E1 (one voice, one data)	WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	Slot 0: PVDM-20	Slot 0: PVDM-16 Slot 1: PVDM-16
VWIC-2MFT-E1 (one voice, one data)	WIC-2T or WIC-2A/S	Slot 0: PVDM-20	Slot 0: PVDM-16 Slot 1: PVDM-16
VWIC-2MFT-E1 (one voice, one data)	VWIC-1MFT-E1 (voice)	Slot 0: PVDM-20 Slot 1: PVDM-20	Slot 0: PVDM-20 Slot 1: PVDM-20
VWIC-2MFT-E1 (one voice, one data)	VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	Slot 0: PVDM-20 Slot 1: PVDM-4	Slot 0: PVDM-20 Slot 1: PVDM-4
VWIC-2MFT-E1 (one voice, one data)	VIC-2BRI-NT/TE	Slot 1: PVDM-20 Slot 1: PVDM-8	Slot 0: PVDM-20 Slot 1: PVDM-8
VWIC-1MFT-T1 (voice)	WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	Slot 0: PVDM-16	Slot 0: PVDM-16 Slot 1: PVDM-16
VWIC-1MFT-T1 (voice)	WIC-2T or WIC-2A/S	Slot 0: PVDM-16	Slot 0: PVDM-16 Slot 1: PVDM-16
VWIC-1MFT-T1 (voice)	VWIC-2MFT-T1 (one voice, one data)	Slot 0: PVDM-16 Slot 1: PVDM-16	Slot 0: PVDM-20 Slot 1: PVDM-20
VWIC-1MFT-T1 (voice)	VWIC-1MFT-T1 (voice)	Slot 0: PVDM-16 Slot 1: PVDM-16	Slot 0: PVDM-20 Slot 1: PVDM-20
VWIC-1MFT-T1 (voice)	VWIC-1MFT-T1 (data)	Slot 0: PVDM-16	Slot 0: PVDM-16 Slot 1: PVDM-16
VWIC-1MFT-T1 (voice)	VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	Slot 0: PVDM-16 Slot 1: PVDM-4	Slot 0: PVDM-20 Slot 1: PVDM-4
VWIC-1MFT-T1 (voice)	VIC-2BRI-NT/TE	Slot 0: PVDM-16 Slot 1: PVDM-8	Slot 0: PVDM-20 Slot 1: PVDM-8
VWIC-1MFT-E1 (voice)	WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	Slot 0: PVDM-20	Slot 0: PVDM-16 Slot 1: PVDM-16
VWIC-1MFT-E1 (voice)	WIC-2T or WIC-2A/S	Slot 0: PVDM-20	Slot 0: PVDM-16 Slot 1: PVDM-16
VWIC-1MFT-E1 (voice)	VWIC-2MFT-E1 (one voice, one data)	Slot 0: PVDM-20 Slot 1: PVDM-20	Slot 0: PVDM-20 Slot 1: PVDM-20
VWIC-1MFT-E1 (voice)	VWIC-1MFT-E1 (voice)	Slot 0: PVDM-20 Slot 1: PVDM-20	Slot 0: PVDM-20 Slot 1: PVDM-20
VWIC-1MFT-E1 (voice)	VWIC-1MFT-E1 (data)	Slot 0: PVDM-20	Slot 0: PVDM-16 Slot 1: PVDM-16
VWIC-1MFT-E1 (voice)	VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	Slot 0: PVDM-20 Slot 1: PVDM-4	Slot 0: PVDM-20 Slot 1: PVDM-4
VWIC-1MFT-E1 (voice)	VIC-2BRI-NT/TE	Slot 0: PVDM-20 Slot 1: PVDM-8	Slot 0: PVDM-20 Slot 1: PVDM-8
VWIC-1MFT-T1 (data) or VWIC-1MFT-E1 (data)	WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	No PVDMs needed	No PVDMs needed
VWIC-1MFT-T1 (data) or VWIC-1MFT-E1 (data)	WIC-2T or WIC-2A/S	No PVDMs needed	No PVDMs needed
VWIC-1MFT-T1 (data)	VWIC-2MFT-T1 (two voice)	Slot 0: PVDM-16 Slot 1: PVDM-16	Slot 0: PVDM-20 Slot 1: PVDM-20
VWIC-1MFT-E1 (data)	VWIC-2MFT-E1 (two voice)	Slot 0: PVDM-20 Slot 1: PVDM-20	Slot 0: PVDM-20 Slot 1: PVDM-20
VWIC-1MFT-T1 (data)	VWIC-1MFT-T1 (voice)	Slot 0: PVDM-16	Slot 0: PVDM-16 Slot 1: PVDM-16
VWIC-1MFT-E1 (data)	VWIC-1MFT-E1 (voice)	Slot 0: PVDM-20	Slot 0: PVDM-16 Slot 1: PVDM-16
VWIC-1MFT-T1 (data) or VWIC-1MFT-E1 (data)	VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	Slot 1: PVDM-4	Slot 1: PVDM-4
VWIC-1MFT-T1 (data)	VIC-2BRI-NT/TE	Slot 1: PVDM-8	Slot 1: PVDM-8
VWIC-1MFT-E1 (data)	VIC-2BRI-NT/TE	Slot 1: PVDM-8	Slot 1: PVDM-8
VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	Slot 0: PVDM-4	Slot 0: PVDM-4
VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	WIC-2T or WIC-2A/S	Slot 0: PVDM-4	Slot 0: PVDM-4
VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	VWIC-2MFT-T1 (two voice)	Slot 0: PVDM-4 Slot 1: PVDM-16	Slot 0: PVDM-4 Slot 1: PVDM-20
VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	VWIC-2MFT-E1 (two voice)	Slot 0: PVDM-4 Slot 1: PVDM-20	Slot 0: PVDM-4 Slot 1: PVDM-20
VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	VWIC-2MFT-T1 (one voice, one data)	Slot 0: PVDM-4 Slot 1: PVDM-16	Slot 0: PVDM-4 Slot 1: PVDM-20
VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	VWIC-1MFT-E1 (one voice, one data)	Slot 0: PVDM-4 Slot 1: PVDM-20	Slot 0: PVDM-4 Slot 1: PVDM-20
VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	VWIC-1MFT-T1 (voice)	Slot 0: PVDM-4 Slot 1: PVDM-16	Slot 0: PVDM-4 Slot 1: PVDM-20
VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	VWIC-1MFT-E1 (voice)	Slot 0: PVDM-4 Slot 1: PVDM-20	Slot 0: PVDM-4 Slot 1: PVDM-20
VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	VWIC-1MFT-T1 (data) or VWIC-1MFT-E1 (data)	Slot 0: PVDM-4	Slot 0: PVDM-4
VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	Slot 0: PVDM-4 Slot 1: PVDM-4	Slot 0: PVDM-4 Slot 1: PVDM-4
VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	VIC-2BRI-NT/TE	Slot 0: PVDM-4 Slot 1: PVDM-8	Slot 0: PVDM-4 Slot 1: PVDM-8
VIC-8FXS (ASI 81)	WIC-1T, WIC-1DSU-56K4, or WIC-1DSU-T1	Slot 0: PVDM-16	Slot 0: PVDM-16
VIC-8FXS (ASI 81))	WIC-2T or WIC-2A/S	Slot 0: PVDM-16	Slot 0: PVDM-16
VIC-8FXS (ASI 81)	VWIC-2MFT-T1 (two voice)	Slot 0: PVDM-16 Slot 1: PVDM-16	Slot 0: PVDM-16 Slot 1: PVDM-20
VIC-8FXS (ASI 81)	VWIC-2MFT-E1 (two voice)	Slot 0: PVDM-16 Slot 1: PVDM-20	Slot 0: PVDM-16 Slot 1: PVDM-20
VIC-8FXS (ASI 81)	VWIC-2MFT-T1 (one voice, one data)	Slot 0: PVDM-16 Slot 1: PVDM-16	Slot 0: PVDM-16 Slot 1: PVDM-20
VIC-8FXS (ASI 81)	VWIC-1MFT-E1 (one voice, one data)	Slot 0: PVDM-16 Slot 1: PVDM-20	Slot 0: PVDM-16 Slot 1: PVDM-20
VIC-8FXS (ASI 81)	VWIC-1MFT-T1 (voice)	Slot 0: PVDM-16 Slot 1: PVDM-16	Slot 0: PVDM-16 Slot 1: PVDM-20
VIC-8FXS (ASI 81)	VWIC-1MFT-E1 (voice)	Slot 0: PVDM-16 Slot 1: PVDM-20	Slot 0: PVDM-16 Slot 1: PVDM-20
VIC-8FXS (ASI 81)	VWIC-1MFT-T1 (data) or VWIC-1MFT-E1 (data)	Slot 0: PVDM-16	Slot 0: PVDM-16
VIC-8FXS (ASI 81)	VIC-2FXS, VIC-2FXO, VIC-2E/M, or VIC-2DID	Slot 0: PVDM-16 Slot 1: PVDM-4	Slot 0: PVDM-16 Slot 1: PVDM-4
VIC-8FXS (ASI 81)	VIC-2BRI-NT/TE	Slot 0: PVDM-16 Slot 1: PVDM-8	Slot 0: PVDM-16 Slot 1: PVDM-8