Status LED
Indicates the instrument status (Figure "Rear view of the R&S SZU", (5)).
LED | R&S SZU status | Description |
---|---|---|
| Off | R&S SZU is powerless. |
| Standby | Controller is running, all analog circuity are powered down. |
| Booting or busy | Controller is booting or USB transfer is running. |
| RF Off | R&S SZU is ready for operation with RF deactivated. |
| RF On | R&S SZU is ready for operation with RF signal activated. |
| Trigger received | LED switches off for 200 µs when an external trigger event occurred. |
| Internal error | E.g., over temperature, power failure, fan failure. |
| External error | E.g., LO level out of range. |