13
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)
