Switch 4200G—Front View Detail 17
1000BASE-X SFP Ports SFP (Small Form Factor Pluggable) ports support fiber Gigabit Ethernet long-wave (LX), long-haul (LH70) and copper (T) SFP Transceivers in any combination. This offers you the flexibility of using SFP transceivers to provide connectivity between the Switch and remote 1000 Mbps workgroups or to create a high capacity aggregated link backbone connection.
The default state for these ports is auto-negotiation enabled, where the speed, duplex and flow control modes are negotiated. As the speed and duplex modes are fixed by the media type, only the flow control is negotiated with the link partner. Alternatively, auto-negotiation can be disabled (except 1000BASE-T which auto-negotiation is mandatory) and the flow control setting can be manually configured.
Console Port The console port allows you to connect a terminal and perform remote or local out-of-band management. As the console port on the Switch is an RJ-45 port, you will need to connect an RJ-45 to DB9 converter cable to a standard null modem cable in order to connect a terminal.
Unit Status Display The Status Display is a seven segment display visible on the front of the Switch. The Status Display indicates switch status conditions such as the unit number, POST test ID, and software upgrade information. In the unlikely event of a hardware fault occurring, the Status Display may be used to help diagnose the problem. For information on using the Status Display for problem solving, see “Solving Problems Indicated by LEDs” on page 54.
Table 4 Status Display
Display | Mode LED Color | Description |
| | |
Digit (1–9) | Mode LED flashing green | POST (power-on startup tests) running. |
| | |
Digit (0–8) | Mode LED flashing red | POST failure. Digit indicates ID of failed test. |
| | | |
| | 0 | POST test OK |
| | | |
| | 1 | CPU error |
| | | |
| | 2 | Switch chip error |
| | | |
| | 3 | RAM error |
| | | |
| | 4 | Flash error |
| | | |
| | 5 | Port error |
| | | |
| | 6 | PHY error |
| | | |
| | 7 | Packet memory error |
| | | |
| | 8 | CPLD error |
