SBG Systems Apogee Subsea Series, Руководство по оборудованию

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Apogee Subsea – Hardware Manual APOGEESUBSEAHM.1.1
Parameter Conditions Min. Typ. Max. Units
Output Short-circuit Current -7V < TX+ or TX- < +12V ±250 mA
Port A, B, C, D, E – RS-232 Receivers
Receiver Data Rate 4800 921600 bps
Input Voltage Range -25 +25 V
Input Threshold
Threshold Low 0,8 V
Threshold High 2,4 V
Input Hysteresis 500 mV
Input Resistance 3 5 7 kΩ
PORT A, B, C – RS-232 – Transmitters
Transmitter Data Rate 4800 921600 bps
Transition-Region Slew Rate
Data Rate <= 230400 bps 4 30 V/µs
Data Rate > 230400 bps 13 150 V/µs
Output Voltage Swing Tx loaded with 3kΩ to GND_MAIN ±5 ±5,4 V
Output Short-Circuit Current Tx = GND ±30 ±60 mA
4.3. Typical wiring
In this section, we briefly describe a few recommended wiring diagrams.
4.3.1. RS-232 basic communications
Below is shown the main interface (Port A) connection, using a full duplex RS-232 connection using the
standard cable provided with the Apogee Subsea. See section Appendix A: Ordering codes and Accessories
for more details about this cable.
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Figure 4.2: Main serial interface full duplex connection in RS-232
INS
GND
PORT A Tx
PORT A Rx
PC
PC Tx
PC Rx
GND