[. . . ] To switch the unit off: At the same time, press both the Up and the Down key. To adjust brigthness: Press the Up/Down keys to find suitable setting. To select depth alarm: Press the S key once and enter alarm setting mode. [. . . ] To select depth alarm: Press the S key once and enter alarm setting mode. When wanted alarm depth is set, the unit will go back to normal mode operation after 15 seconds, or press S to the depth occur. When depth below transducer become the same, or less, than the alarm depth, the display will indicate "AL alternating with actual depth. To select readings in feet, meters or fathoms: Press the S key twice and enter alarm setting mode. When readings is set, the unit will go back to normal mode operation after 15 sec, or press S to the depth occur. To select transducer position (Only for EN 250): Press the S key three times and enter the transducer selection mode. Press the Up/Down keys to select between the four choices: Unknown, Forward, Backward or Auto. - The Unknown selection decode any NMEA depth message and shows the depth on the display. To increase service ability and life-time, we suggest the working temperature to be held at 0 to +40 degrees C. Storage temperature: -20 to +70 degree C Humidity: 10 - 90% relative, no condensation Protection: IP 56 Generic RS-232 Serial line This cable comprises a multi-purpose serial Local (DTE) 9-pin `D' connector line. One end of the cable connects to the local 3 5 unit (DTE) with a 9-pin `D' connector, while the other connects to the peripheral (DCE) as described in the peripheral unit's documentation. Note that this cable does not support all the signals in the standard RS-232 specification. Rx Tx Ground To plug housing Remote unit (DCE) to be connected as described in applicable documentation 5 Looking into female 9-pin D-pin connector 9 1 Looking into male 9-pin D-pin connector 6 9 6 5 1 Screen View W103 / Rev G Standard RS-232 serial line Note about wiring A wrong type of cable has been used in the production of the first series of RD301 repeaters. WIRING CONNECTING Two of the wires in the cable have a different COLOUR SIGNAL COLOUR SIGNAL RED + 24V GREEN DIM+ colour coding from the original: BLACK - 24V YELLOW DIM- NMEA IN/OUT Brown wire BLUE GREY NMEA IN+ DIMKEY (originally white) WHITE NMEA IN/OUTDIM+ NMEA OUT+ ORANGE REMOTE - DIMKEY Violet wire DIMMER DIM(originally grey) DIMKEY Other cables as marked on the rear wall of the GROUND WITH GROUND STUD repeater. About this manual Kongsberg Simrad AS makes every effort to ensure that the information contained within this document is correct. However, our equipment is continuously being improved and updated, so we cannot assume liability for any errors which may occur. Warning The equipment to which this manual applies must only be used for the purpose for which it was designed. Improper use or maintenance may cause damage to the equipment or injury to personnel. [. . . ] However, our equipment is continuously being improved and updated, so we cannot assume liability for any errors which may occur. Warning The equipment to which this manual applies must only be used for the purpose for which it was designed. Improper use or maintenance may cause damage to the equipment or injury to personnel. The user must be familiar with the contents of the appropriate manuals before attempting to install, operate or maintain the equipment. [. . . ]