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Dialogic
®
DSI SS7MD Programmer’s Manual Issue 3
2.2.5 Visual Indicators
The DSI SS7MDL4 board includes the following visual indicators:
• T1/E1/J1 dual-color Green/Red status LEDs:
— Green indicates a valid link
— Red indicates a line alarm
Note: Only the LEDs 0, 1, 2, and 3 are active (LEDs 4, 5, 6, and 7 are reserved for future use).
2.2.6 Power Requirements
Power requirements are described as follows:
• +12 VDC power
1.1 A typical, 1.4 A max.
• Power dissipation
17 W max.
2.2.7 Airflow Requirements
The board should be installed in host computers providing an airflow of at least 300 linear feet per minute
(LFM), 1.5 m/s. This airflow should be evenly distributed across the board. See Appendix B, “Thermal
guidelines for selecting suitable servers for use with a Dialogic® DSI SS7MDL4 Network Interface Board”.
2.2.8 Environmental Specification
Environmental specification is described as follows:
• Operating temperature range
+0°C to +55°C
• Storage temperature range
-20°C to +70°C
• Humidity
5% to 95% non-condensing
• Altitude
0 to 15,000 ft
• Vibration
0.1 g, 5 to 100 Hz
• Shock
Packaged equipment drop test 29.5 in (750 mm)
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