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Appendix G. Short-Haul Modems

Set SRM-5A at PC end to “DCE” mode.

Set SRM-5A at RF401 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 RF401 cable is 25-pin male to 9-pin male available

as CSI Item # 14413.

Setup LoggerNet as direct connect (refer to Section 3.2.3).

RCV

+G +

XMT

DTEDTE DCEDCE

RCV

+G +

XMT

DTEDTE DCEDCE

RS232

Pwr

CS I/O

Pwr/TX

MADE IN USASerial #

Program

Antenna

14320

RF400

Spread Spectrum Radio

This device contains transmitter module:

FCC ID: OUR-9XTREAM

The enclosed device complies with Part 15 of the

FCC Rules.

Operation is subject to the following two conditions:

(1) This device may not cause harmful interference,

and (2) this device must accept any intererence

received, including interference that may cause

undesired operation.

Logan, Utah

DIFF

GH L

AG H L AG H L AG E1 AG E2 G

DIFF

GH L

AG H L AG H L AG E3 AG G G

910

11 12

P1 G P2 G C8 C7 C6 C5 C4 C3 C2 C1 G 12V 12V

SDM

5V 5V G G

SW 12V

SW 12V CTRL

Logan, Utah

G 12V

POWER

CR10X WIRING PANEL

MADE IN USA

WIRING

PANEL NO.

EARTH

GROUND

CS I/O

apx

TECHNOLOGIES INC.

CLASS 2 TRANSFORMER

MODEL NO: AP2105W

INPUT: 120VAC 60Hz 20W

LISTED

2H56

E144634

MADE IN CHINA

OUTPUT: 12VDC 1.0A

HICKSVILLE, NEW YORK

RS232

Pwr

CS I/O

Pwr/TX

MADE IN USASerial #

Program

Antenna

14320

RF400

Spread Spectrum Radio

This device contains transmitter module:

FCC ID: OUR-9XTREAM

The enclosed device complies with Part 15 of the

FCC Rules.

Operation is subject to the following two conditions:

(1) This device may not cause harmful interference,

and (2) this device must accept any intererence

received, including interference that may cause

undesired operation.

Logan, Utah

SRM-5A Short-haul Modems

Datalogger CS I/O

CS I/O

DCE DTE

RS-232

AC Adapter

FIGURE G-1. Short-Haul Modem to RF401 Setup

Configure RF401s for point-to-point (see Quick Start Section 3.2). Default

settings should work unless there is a neighboring network.

- RX LED Test -

To determine if there is a neighboring RF401 network in

operation using the same hopping sequence as yours, stop

communications on your network and observe RF401 green

LEDs for activity. At this point, any green LED activity would

indicate that there is a nearby network using the same hopping

sequence.

12 V power for the base RF401 is typically supplied using the AC adapter

(shown in Figure G-1).

The remote RF401 is typically powered via the datalogger’s CS I/O port.

Refer to Section 4.2 for more information about power supplies.

G-1

1 2 ... 76 77 78 79 80 81 82 83 84 85 86 ... 125 126

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