User Manual

8
Cisco Connected Grid 3G Module Installation and Configuration Guide
OL-25991-01
Hardware Overview
Table 3 lists the ports and the LED indicators and describes their behavior. The LEDs provide a visual
indication of the available services.
Table 3 LED Definitions
Port or LED
Name Color Description
WWAN Green Indicates the modem status. Driven by the modem, not under software
control except for diagnostic purposes. Functionality may be changed by
configuring modem.
• Off: Module not powered
• On: Module is powered on and connected but not transmitting or
receiving
• Slow blink: Module is powered on and searching for connection
• Fast blink: Module is transmitting or receiving.
For information on modem settings, see Modem, page 13.
RSSI Bi-color,
green/amber
Indicates the level of signal strength received by the software.
LEDs can be lit as follows:
• Off: RSSI < = -110
• Solid amber: -100 < RSSI <= -90
• Fast green blink: -90 < RSSI <= -75
• Slow green blink: -75 < RSSI <= -60
• Solid green: RSSI > -60
SVC Bi-color,
green/amber
Service LED indicates the following:
GSM Module:
• Off: No service
• Solid amber: GPRS/EDGE mode is in use
• Green slow blink: UMTS mode is in use
• Solid green: HSDPA/HSUPA/HSPA+ mode is in use
CDMA module:
• Off: No service
• Solid amber: 1xRTT
• Green slow blink: EVDO Rev 0
• Solid green: EVDO Rev A
SIMx
(GSM
module)
Bi-color,
green/yello
w
SIM1 and SIM2 LEDs are controlled by hardware under normal
operation. SIM insertion/removal and software setting of the SIM Socket
Select bit are decoded by the CPLD to control the LEDs. For diagnostic
purposes there is register control of these LEDs in WLANLEDR.
• Off: No SIM
• Yel low : SIM installed but not active
• Green: SIM installed and active