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Campbell Manufacturing R410, RF400, RF415 Appendix G. Short-HaulModems, G-1

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Appendix G. Short-Haul Modems

Set SRM-5A at PC end to “DCE” mode.

Set SRM-5A at RF400 end to “DTE” mode.

The PC to SRM-5A cable is typically a 9-pin female to 25-pin male (CSI Item

#7026). The SRM-5A to RF400 cable is 25-pin male to 9-pin male available as CSI Item # 14413.

LoggerNet or PC208W Network Map:

COM1

CR10X1

AC Adapter

apx

UL UL

	SRM-5A Short-haul Modems
	RS-232
-	-
-	-
DCE	DTE

RF400

Datalogger CS I/O

CS I/O

RF400

G

12V

SW 12V CTRL

G

12V

CS I/O

SE

7

8

9

10

11

12

SW 12V

POWER

DIFF

4

5

6

IN

G

G

H

L

AG H

L

AG H

L

AG E3

AG G G

5V 5V G

G

CR10X WIRING PANEL

SE

1

2

3

4

5

6

SDM

DIFF

1

2

3

G

G

H

L

AG H

L

AG H

L

AG E1

AG E2 G

P1 G P2

G C8 C7 C6 C5 C4

C3 C2 C1 G

12V 12V

FIGURE G-1. Short-Haul Modem to RF400 Setup

Configure RF400s for point-to-point (see Software Setup Section 5.3). Default settings should work unless there is a neighboring network (see Section 5.3.1, 4.d).

12 V power for the base RF400 can be supplied by an AC adapter as shown or a Field Power Cable (see Power Supplies in Section 4.4). Current dataloggers will supply remote RF400 power via serial cable.

G-1

Contents

RF400/RF410/RF415 Spread Spectrum Data Radio/Modem Warranty and Assistance – CAUTION – Page RF400 Series Table of Contents Introduction Quick Start Software Setup Troubleshooting D. Advanced Setup Standby Modes E. RF400 Series Port Pin Descriptions Short-Haul Modems H. Distance vs. Antenna Gain, Terrain, and Page Page RF400 Series Spread Spectrum Data Radio/Modems 1. Introduction 2. RF400 Series Specifications 3. Quick Start Step 1 – Set Up Base RF400 Step 2 – Set Up Remote RF400 Step 3 – LoggerNet/PC208W Set-up Step 4 – Connect 4. System Components 4.1 RF400 Series Data Radios 4.1.1 Indicator LEDs 4.1.2 Setup Menu 4.1.3 Networking 4.1.4Error Handling and Retries 4.1.4.2 Number of Retries 4.1.4.3 Number of Time Slots for Random Retry 4.1.4.4 Number of Bytes Transmitted before Delay 4.1.4.5 Sync Timer Setting 4.1.5 Received Signal Strength 4.2Power Supplies The RF400 series radio will sustain damage if the DC Pwr jack voltage ever exceeds Volts 4.3 Serial Cables 4.4 Antennas for the RF400 Series FCC OET Bulletin No. 63 (October 1993) approved antennas Page Page 4.5 Antenna Cables and Surge Protection 4.5.1 Antenna Cables 4.5.2 Electro-staticIssues 4.5.3Antenna Surge Protector Kit 5.Software Setup 5.1Point-to-point 5.2 Point-to-multipoint 5.3 Example Setups 5.3.1Direct PC to RF400 Series Base Station Setup Page 5.3.2Remote Station Setup Page 5.3.3 LoggerNet Configuration 5.3.4PC208W Configuration Page 6. Troubleshooting Page Page Appendix A. Part 15 FCC Compliance Warning Page Appendix B. Setup Menu B-2 B-3 B-4 Appendix C. RF400 Series Address and Address Mask Combined Network/ Radio Addresses C-2 C-3 C-4 Appendix D. Advanced Setup Standby Modes D-2 Appendix E. RF400 Series Port Pin Descriptions CS I/O FUNCTION E-2 Appendix F. Datalogger RS-232Port to RF400 Series Radio Page Appendix G. Short-HaulModems G-2 Appendix H. Distance vs. Antenna Gain, Terrain, and Other Factors Overview Link Analysis Transmitter Power Cable Loss Antenna Gain Receiver Sensitivity Path Loss Real World Distance Estimates Examples Range from ~9 to ~22 miles Range from ~14 to 30+ H-8 Appendix I. Phone to RF400 Series Page 2)AT Command Character: “-” Page Appendix J. Monitor CSAT3 via RF400 Series J-2 J-3 Page Appendix K. RF400/RF410 Pass/Fail Tests TESTING SC12 CABLE and PC COM PORT K-2 TESTING RF400/RF410s TESTING ANTENNAS K-5 TABLE K-1.900 MHz Gain Antenna Test Distances Antenna Power Ratio Distance Apart Over ¼ Wave Appendix L. RF400/RF410 Average Current Drain Calculations L-2 EXAMPLE #1 It ≈ 6.1 mA L-3 EXAMPLE #2 It ≈ 6.9 mA L-4 EXAMPLE #3 It ≈ 12.4 mA L-5 EXAMPLE #4 It ≈ 2.4 mA L-6 EXAMPLE #5 It ≈ 4.1 mA L-7 EXAMPLE #6 It ≈ 0.6 mA L-8 EXAMPLE #7 It ≈ 0.43 mA L-9 L-10 Page Campbell Scientific Companies Campbell Scientific, Inc. (CSI) Campbell Scientific Africa Pty. Ltd. (CSAf) Campbell Scientific Australia Pty. Ltd. (CSA) Campbell Scientific do Brazil Ltda. (CSB)