Remote outputs
Refer to Figure 1 for a schematic representation of each master clock or time server RS-485 output driver. Relative to RS-485 specifications, the A terminal (Pin 2) is negative with respect to the B terminal (Pin 1) for a mark or binary 1. The A terminal is positive to the B terminal for a space or binary 0.
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FIGURE 1: RS-485 Output |
A 3-position terminal block is supplied with each remote connector. A typical connector for a two port device is shown in Figure 2.
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FIGURE 2: Remote Outputs |
These remote outputs provide a continuous once-per-second time data stream in the selected data format. There are five time data format selections and one position data stream in NMEA 0183 format available. (Two time data formats are available for the model 8182). Refer to the corresponding instruction manual for a complete description of the Data Format structures and RS-485 output port descriptions. In addition to Data Formats, baud rate and UTC time difference of each output is configurable. The Remote output ports (with the exception of the models 8189, 8183, 8182) are configured using the web browser interface for the device. Refer to the product's instruction manual for configuring these ports.
| RS-485 Outputs per MasterClock or TimeServer |
| Model |
Outputs |
| 9x83 |
2 |
| 9x89 |
1 |
| TTS200 |
1 |
| TTS220 |
2 |
| TTS240 |
2 |
| 9x88* |
1 |
| 8189 |
1 |
| 8183 |
2 |
| 8182** |
1 DB9 |
* The remote port labeled RS-485 2, is an input port.
** consult the manual for details of the RS-485 remote output for model 8182. |