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Cisco 819 Integrated Services Router Hardware Installation Guide
OL-23125-02
Chapter 1 Product Overview
Hardware Features
Table 1-6 describes the WLAN LEDs for the Cisco 819HGW and Cisco 819HWD ISRs.
RSSI Green (solid) Signal > –60 dBm
Very strong signal
Green (three blinks and
then a long pause)
Signal <= –60 to 74 dBm
Strong signal
Green (two blinks and
then a long pause)
Signal <= –75 to –89 dBm
Fair signal
Green (one blink and
then a long pause)
Signal <= –90 to –109 dBm
Marginal signal
Off Signal <= –110 dBm
Unusable signal
SIM
1,2
Green / Yellow (one
green blink followed by
two yellow blinks)
SIM in slot 0 active, SIM in slot 1 is not.
Yellow / Green (one
yellow blink followed
by two green blinks)
SIM in slot 1 active, SIM in slot 0 is not.
Off / Green (two green
blinks and then a pause)
No SIM in slot 0, SIM present in slot 1.
Green / Off (Slow single
green blink and then a
pause
SIM present in slot0, no SIM in slot 1.
Off / Off No SIM present in either slots.
3G Green (one blink and
then a pause)
For 1xRTT, EGPRS, or GPRS service.
Green (two blinks and
then a pause)
For EVDO, EVDO/1xRTT, or UMTS.
Green (three blinks and
then a pause)
For EVDO/1xRTT RevA, HSPA, or HSUPA/HSDPA.
Green (solid) For HSPA PLUS.
Off No Service.
1. Not applicable to Verizon and Sprint EVDO modems.
2. There is only one LED to indicate the status of two SIMs. A one-blink pattern represents the status of the SIM in slot 0,
followed by a two-blink pattern for the SIM in slot 1.
Table 1-5 3G LED Descriptions (continued)
LED Color Description