Appendix E. RF400 Series Port Pin Descriptions
E-2
CS I/O
CONNECTOR, 9-PIN D-SUB MALE
PIN
FUNCTION
I/O
DESCRIPTION
1
5V
I
Sources 5 VDC to power peripherals
2
GND
GND for pin 1 and signals
3
Ring
O
Raised by modem to put datalogger
into telecommunications mode
4
RX
O
Serial data receive line
5
Modem Enable
I
Raised when datalogger determines
that associated modem raised the
ring line
6
Synchronous Device
Enable
I
Used by datalogger to address
synchronous devices; can be used as
a printer enable
7
CLK/Handshake
I/O
Used by datalogger with SDE and
TX lines to transfer data to
synchronous devices
8
12V supplied by
datalogger
PWR
Sources 12 VDC to power
peripherals
9
TX
I
Serial data transmit line
I = Signal Into the RF400, 0 = Signal Out of the RF400
Summary of Contents for RF400
Page 4: ...This is a blank page...
Page 8: ...RF400 Table of Contents iv This is a blank page...
Page 40: ...This is a blank page...
Page 44: ...Appendix B Setup Menu B 4 This is a blank page...
Page 54: ...This is a blank page...
Page 64: ...Appendix H Distance vs Antenna Gain Terrain and Other Factors H 8 This is a blank page...
Page 72: ...Appendix J Monitor CSAT3 via RF400 Series J 2 This is a blank page...
Page 88: ...Appendix L RF400 RF410 Average Current Drain Calculations L 10 This is a blank page...
Page 89: ...This is a blank page...
