VoIP Server Configuration Examples

Below are examples of PC/Server platforms configured with the SigC5561 high capacity VoIP card.  Note that even with maximum DSP load (12 devices) max power consumption of the SigC5561 card (23W) is still less than PCI 2.2 spec (25W).

Desktop
	SigC5561 card installed inside desktop PC	Desktop backplate
1U Configuration
	SigC5561 card installed inside a 1U server	1U server backplate
2U Configuration
	SigC5561 card installed inside a 2U server	2U server backplate
1U NEBS Compliant Configuration
	SigC5561 card installed inside a 1U NEBS server	1U NEBS server backplate
PCIe MotherBoard
	SigC5561 card installed into x4 PCIe slot	PCIe MotherBoard
ATCA
	shown with two (2) SigC5561 modules and one OC3 STM-1 module installed, functioning as complete G729 OC3 media gateway

Server Recommendations

1. PCI slot in which the SigC5561 card will be used should conform to PCI 2.2 specification. Specifically, the PCI slot should provide 25W power and full-height, half length PCI card mechanical fit.

2. The server chassis should provide adequate airflow over the PCI expansion area. At least 50 cfm is recommended for the SigC5561 card.

3. All server fans should be rated to a minimum of 100,000 MTBF.

4. If possible, the power supply should be positioned on the opposite side of the chassis as PCI expansion area.

5. The server chassis should conform to proper earth/chassis grounding practices.  In particular, signal ground at the PCI slot should not be tied to chassis ground.  The SigC5561 card conforms to GR 1089 regulatory requirements for surge suppression and isolation; the card expects a separate chassis ground to be maintained from PCI slot gnd signals and, if applicable, PCI riser gnd signals.  The SigC5561 card implements chassis gnd via mounting hardware and backplate.