Chapter 1 Product Overview
Hardware Features
Table | 3G LED Descriptions (continued) | ||
|
|
|
|
LED |
| Color | Description |
|
|
|
|
RSSI |
| Green (solid) | Signal > |
|
|
| Very strong signal |
|
|
|
|
|
| Green (three blinks and | Signal <= |
|
| then a long pause) | Strong signal |
|
|
| |
|
|
|
|
|
| Green (two blinks and | Signal <= |
|
| then a long pause) | Fair signal |
|
|
| |
|
|
|
|
|
| Green (one blink and | Signal <= |
|
| then a long pause) | Marginal signal |
|
|
| |
|
|
|
|
|
| Off | Signal <= |
|
|
| Unusable signal |
|
|
|
|
SIM1,2 |
| Green / Yellow (one | SIM in slot 0 active, SIM in slot 1 is not. |
|
| green blink followed by |
|
|
| two yellow blinks) |
|
|
|
|
|
|
| Yellow / Green (one | SIM in slot 1 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 slot0, no SIM in slot 1. |
|
| green blink and then a |
|
|
| pause |
|
|
|
|
|
|
| Off / Off | No SIM present in either slots. |
|
|
|
|
3G |
| Green (one blink and | For 1xRTT, EGPRS, or GPRS service. |
|
| then a pause) |
|
|
|
|
|
|
| Green (two blinks and | For EVDO, EVDO/1xRTT, or UMTS. |
|
| then a pause) |
|
|
|
|
|
|
| Green (three blinks and | For EVDO/1xRTT RevA, HSPA, or HSUPA/HSDPA. |
|
| then a pause) |
|
|
|
|
|
|
| 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
Table
| Cisco 819 Integrated Services Router Hardware Installation Guide |