ATM 300 Series | Switches and Indicators |
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1.6Switches and Indicators
Table 2 describes the front and rear panel switches and indicators.
Table 2. Switches and Indicators
Panel | Name | Description |
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Front | DATA FLOW | Determines how the ATM unit responds to a missing |
| (switch) | or invalid |
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| CONTINUOUS - Continues record and playback |
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| operations at 155.52 Mbits/sec as |
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| determined by an internal crystal |
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| oscillator. This provides a valid |
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| output during playback regardless of the |
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| GATED - Pauses record and playback operations |
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| until valid |
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| The ATM unit resumes normal operation after the |
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| TRANSMITTER |
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| EMPTY | Indicates data rate from the tape drive is too slow. |
| (yellow | This is to be expected whenever the tape drive is not |
| indicator) | supplying data. |
| FULL | Indicates data rate from the tape drive is too fast. This |
| (red indicator) | is an abnormal condition and most likely indicates |
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| that the tape drive is not using its write input to |
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| regulate its playback rate (internal playback clock* |
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| should be disabled). |
| OK (green | Indicates correct data rate from the tape drive. |
| indicator) |
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| RECEIVER OK | Indicates ATM unit receiving valid |
| (green indicator) | signal input. |
| POWER (green | Indicates ATM unit is |
| indicator) |
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| POWER (switch) | ON - Powers up the ATM unit. |
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| OFF - Powers down the ATM unit. |
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Rear | TEST LOOP | TEST - Self test operation. |
| (switch) |
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| NORMAL - Normal operation. |
| ERROR (red | Indicates (during normal operation) that a valid |
| indicator) | HOTLink input is missing. |
| RESET (button) | Resets the ATM unit during normal operation. |
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*For setting internal playback clock options, see DIS Tape Drive or ACL Installation and Operation manual.
Ampex | 5 |
