Vanguard Managed Solutions 7300 Series Voice Server/DSP Mezzanine Card PMC, Rear Panel

Vanguard 7300 Cards

T1/E1/PRI Rear The T1/E1/PRI Rear Transition Module connects to the T1/E1/PRI card at the Transition Module - Vanguard 7300 midplane. The T1/E1/PRI Rear Transition Module provides 12

Rear Panel RJ48C connectors accessible from the rear of the chassis and shown in Figure 2-18.

			Serial No. Location
		Figure 2-18. T1/E1/PRI Transition Module, Rear View
Pinouts
		See Appendix B, Vanguard 7300 Cable Connectors and Pinouts for the port pinouts.
	Voice Server/DSP Mezzanine Card (PMC)
Description
		To support digital voice functions, a Voice Server PCI PMC must be installed on the
		T1/E1/PRI card. The Voice Server PMC is a customized card designed to be
		mounted only on the Vanguard 7300 T1/E1/PRI card. This PMC cannot be installed
		anywhere else. Figure 2-16shows the PMC mounted on the T1/E1/PRI card.
Functions
		A Voice Server PMC supports up to 48 T1 voice channels and 60 E1 voice channels
		per card. The Voice Server PMC provides these functions:
		• Voice compression and decompression by G.723.1, G.279A, and G.711
		•	Signal processing
		• Digital voice processing functions
		• Voice Activity Detetion (VAD) or Digital Speech Interpolation (DSI)
		• Echo Cancellation (up to 16 ms. delay)
		•	Adaptive Smoothing Delay
		•	Dynamic Modem support
		•	Fax support

Note

The Voice Server PMC has no physical ports of its own. Voice ports can only terminate on the first two ports on the T1/E1/PRI card rear transition module.

Note

Digital Voice ports are booted twice when the node is warm-booted. Two “port boot complete” messages are displayed.

Vanguard 7300 Enclosures and Components 2-27