TXP-T1600 SIB LEDs
Table 1 describes the functions of the T1600-SIB LEDs. If all three LEDs are off, the SIB is not receiving power. The craft interface has three additional LEDs that show the status of each SIB.
Table 1: TXP-T1600 SIB LEDs
Label | Color | State | Description |
|---|---|---|---|
ACTIVE | Green | On steadily | SIB is in active mode. |
OK | Green | On steadily | SIB is functioning normally. |
Blinking | SIB is starting up. | ||
FAIL | Yellow | On steadily | SIB has failed. |
The port LEDs—labeled A, B, C, D—are located in the upper left corner of the TXP-T1600 SIB. Figure 1 shows the port LEDs. Table 2 describes the functions of these LEDs.
Figure 1: TXP-T1600 SIB Port LEDs

Table 2: TXP-T1600 SIB Port LEDs
Label | Color | State | Description |
|---|---|---|---|
LINK | Green | On steadily | The link between the TXP-F13 SIB port and the TXP-T1600 SIB port has been established successfully. |
Blinking | The link between the TXP-T1600 SIB port and the loopback connector has been established successfully. | ||
Yellow | On steadily | The link is being established. | |
Blinking | The fiber-optic array cable might be connected to either the wrong TXP-T1600 SIB port or wrong TXP-FI3 port. | ||
Red | On steadily | The link between the TXP-F13 SIB port and the TXP-T1600 SIB port failed. There might be a hardware problem, or the fiber-optic port or cable might need to be cleaned. | |
– | Off | The cable is not connected on both sides, or either the TXP-F13 SIB or TXP-T1600 SIB is powered off. | |
RxPWR | Green | On steadily | Full optical power is being received. |
Yellow | On steadily | Diminished optical power is being received. The fiber-optic array cable or the fiber-optic array port might need cleaning, or the cable might be damaged. | |
– | Off | No optical power has been received. The fiber-optic array cable is not connected to the TXP-FI3 SIB port, or not connected to the TXP-T1600 SIB port. If the cable is connected on both sides, the cable might be cut. |
