Cisco Systems OL-27407-01 manual Rssi, Sim

Chapter 1 Product Overview

Cisco 810 Series

Table 1-10	4G LTE LED Descriptions (continued)
LED		Color	Description
RSSI		Green (solid)	Signal > –60 dBm
			Very strong signal
		Green (three blinks and	Signal <= –60 to 74 dBm
		then a long pause)	Strong signal
		Green (two blinks and	Signal <= –75 to –89 dBm
		then a long pause)	Fair signal
		Green (one blink and	Signal <= –90 to –109 dBm
		then a long pause)	Marginal signal
		Off	Signal <= –110 dBm
			Unusable signal
SIM		Green / Yellow (one	SIM in slot 0 is active, SIM in slot 1 is not.
		green blink followed by
		two yellow blinks)
		Yellow / Green (one	SIM in slot 1 is active, SIM in slot 0 is not.
		yellow blink followed
		by two green blinks)
		Off / Green (two green	No SIM in slot 0, SIM present in slot 1.
		blinks and then a pause)
		Green / Off (Slow single	SIM present in slot 0, no SIM in slot 1.
		green blink and then a
		pause)
		Off / Off	No SIM present in either slots.
3G/4G		Green (one blink and	For 1xRTT, EGPRS, or GPRS service.
		then a pause)
		Green (two blinks and	For EVDO, EVDO/1xRTT, or UMTS service.
		then a pause)
		Green (three blinks and	For EVDO/1xRTT RevA, HSPA, or HSUPA/HSDPA
		then a pause)	service.
		Green (four blinks and	For HSPA+ service.
		then a pause)
		Green (Solid)	For 4G/LTE service.
		Off	No Service.

Memory

The Cisco 819HG and Cisco 819G ISRs uses non-upgradable flash memory and main memory. The onboard flash memory contains the Cisco IOS software image and the boot flash contains the ROMMON boot code. Table 1-11lists the memory requirements for Cisco 819 ISRs.

	Cisco Integrated Services Router Hardware Installation Guide
OL-27407-01		1-25