Dialogic SS7G22 manual Physical Specifications, Environmental Specifications, Product Reliability

Dialogic® SS7G21 and SS7G22 Signaling Servers Hardware Manual Issue 7

3.10Physical Specifications

The physical specifications of the SS7G21 and SS7G22 are described as follows:

•Height:

3.45inches (87.6 mm)

•Width:

17.11inches (434.6 mm)

•Depth:

20 inches (508 mm)

•Front clearance:

2 inches (76 mm)

•Side clearance:

1 inch (25 mm)

•Rear clearance:

3.6inches (92 mm)

•Weight:

18.5Kgm for a fully-loaded system

3.11Environmental Specifications

The environmental specifications for the SS7G21 and SS7G22 are described as follows:

•Temperature, operating:

+5°C to +40°C (+41°F to +104°F)

•Temperature, non-operating:-40°C to 70°C (-104°F to 158°F)

•Humidity, non-operating:

95%, non-condensing at temperatures of 23°C to 40°C (73°F to 104°F)

•Acoustic:

Sound pressure: < 55 dBA at ambient temperatures < 28°C measured at bystander positions in operating mode

3.12Product Reliability

Product reliability varies depending on the number of Power Supply Modules and the number of Dialogic® SS7 Signaling Boards. Table 2 shows the values of Mean Time Between Failure (MTBF) for Single power supply operation, but for Dual power supply operation it shows the values of Mean Time Between Interruption (MTBI). The MTBI values are valid on the assumption that a failed Power Supply Module is replaced within a reasonable period of time.

Table 2. Calculated Product Reliability

Dialogic®	Reliability	Zero SS7	One SS7	Two SS7	Three SS7
Model	with:	Signaling Board	Signaling Board	Signaling Boards	Signaling Boards
	Dual Power Supply	n/a	MTBI = 66,700 hrs	MTBI = 50,200 hrs	MTBI = 40,300 hrs
	Modules:
SS7G21
	Single Power Supply	n/a	MTBF = 55,700 hrs	MTBF = 43,700 hrs	MTBF = 36,000 hrs
	Module:
	Dual Power Supply	MTBI = 99,400 hrs	MTBI = 57,300 hrs	MTBI = 40,200 hrs	MTBI = 31,000 hrs
	Modules:
SS7G22
	Single Power Supply	MTBF = 76,700 hrs	MTBF = 49,000 hrs	MTBF = 35,900 hrs	MTBF = 28,400 hrs
	Module:
Note: Predictions in accordance with the Bellcore® Method @ 40°C.

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