Campbell Scientific COM220 User Manual

INSTRUCTION MANUAL

COM220 Telephone Modem

Copyright © 1997- 2014

Campbell Scientific, Inc.

Revision: 7/14

Limited Warranty

“Products manufactured by CSI are warranted by CSI to be free from defects in
materials and workmanship under normal use and service for twelve months
from the date of shipment unless otherwise specified in the corresponding
product manual. (Product manuals are available for review online at

www.campbellsci.com.) Products not manufactured by CSI, but that are resold

by CSI, are warranted only to the limits extended by the original manufacturer.
Batteries, fine-wire thermocouples, desiccant, and other consumables have no
warranty. CSI’s obligation under this warranty is limited to repairing or
replacing (at CSI’s option) defective Products, which shall be the sole and
exclusive remedy under this warranty. The Customer assumes all costs of
removing, reinstalling, and shipping defective Products to CSI. CSI will return
such Products by surface carrier prepaid within the continental United States of
America. To all other locations, CSI will return such Products best way CIP
(port of entry) per Incoterms ® 2010. This warranty shall not apply to any
Products which have been subjected to modification, misuse, neglect, improper
service, accidents of nature, or shipping damage. This warranty is in lieu of all
other warranties, expressed or implied. The warranty for installation services
performed by CSI such as programming to customer specifications, electrical
connections to Products manufactured by CSI, and Product specific training, is
part of CSI's product warranty. CSI EXPRESSLY DISCLAIMS AND

EXCLUDES ANY IMPLIED WARRANTIES OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE. CSI hereby disclaims,
to the fullest extent allowed by applicable law, any and all warranties and
conditions with respect to the Products, whether express, implied or
statutory, other than those expressly provided herein.”

Assistance

Products may not be returned without prior authorization. The following
contact information is for US and international customers residing in countries
served by Campbell Scientific, Inc. directly. Affiliate companies handle
repairs for customers within their territories. Please visit

www.campbellsci.com to determine which Campbell Scientific company serves

your country.

To obtain a Returned Materials Authorization (RMA), contact CAMPBELL
SCIENTIFIC, INC., phone [phone]. After an application engineer
determines the nature of the problem, an RMA number will be issued. Please
write this number clearly on the outside of the shipping container. Campbell
Scientific’s shipping address is:

CAMPBELL SCIENTIFIC, INC.
RMA#_____
815 West 1800 North
Logan, Utah 84321-1784

For all returns, the customer must fill out a “Statement of Product Cleanliness
and Decontamination” form and comply with the requirements specified in it.
The form is available from our web site at www.campbellsci.com/repair. A
completed form must be either emailed to [e-mail] or faxed to
[phone]. Campbell Scientific is unable to process any returns until we
receive this form. If the form is not received within three days of product
receipt or is incomplete, the product will be returned to the customer at the
customer’s expense. Campbell Scientific reserves the right to refuse service on
products that were exposed to contaminants that may cause health or safety
concerns for our employees.

Precautions

DANGER — MANY HAZARDS ARE ASSOCIATED WITH INSTALLING, USING, MAINTAINING, AND WORKING ON OR AROUND

TRIPODS, TOWERS, AND ANY ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS, ENCLOSURES,
ANTENNAS, ETC. FAILURE TO PROPERLY AND COMPLETELY ASSEMBLE, INSTALL, OPERATE, USE, AND MAINTAIN TRIPODS,

TOWERS, AND ATTACHMENTS, AND FAILURE TO HEED WARNINGS, INCREASES THE RISK OF DEATH, ACCIDENT, SERIOUS
INJURY, PROPERTY DAMAGE, AND PRODUCT FAILURE. TAKE ALL REASONABLE PRECAUTIONS TO AVOID THESE HAZARDS.
CHECK WITH YOUR ORGANIZATION'S SAFETY COORDINATOR (OR POLICY) FOR PROCEDURES AND REQUIRED PROTECTIVE
EQUIPMENT PRIOR TO PERFORMING ANY WORK.

Use tripods, towers, and attachments to tripods and towers only for purposes for which they are designed. Do not exceed design
limits. Be familiar and comply with all instructions provided in product manuals. Manuals are available at www.campbellsci.com or
by telephoning 435-227-9000 (USA). You are responsible for conformance with governing codes and regulations, including safety
regulations, and the integrity and location of structures or land to which towers, tripods, and any attachments are attached. Installation
sites should be evaluated and approved by a qualified engineer. If questions or concerns arise regarding installation, use, or
maintenance of tripods, towers, attachments, or electrical connections, consult with a licensed and qualified engineer or electrician.

General

• Prior to performing site or installation work, obtain required approvals and permits. Comply

with all governing structure-height regulations, such as those of the FAA in the USA.

• Use only qualified personnel for installation, use, and maintenance of tripods and towers, and

any attachments to tripods and towers. The use of licensed and qualified contractors is
highly recommended.

• Read all applicable instructions carefully and understand procedures thoroughly before

beginning work.

• Wear a hardhat and eye protection, and take other appropriate safety precautions while

working on or around tripods and towers.

• Do not climb tripods or towers at any time, and prohibit climbing by other persons. Take

reasonable precautions to secure tripod and tower sites from trespassers.

• Use only manufacturer recommended parts, materials, and tools.

Utility and Electrical

• You can be killed or sustain serious bodily injury if the tripod, tower, or attachments you are

installing, constructing, using, or maintaining, or a tool, stake, or anchor, come in contact
with overhead or underground utility lines.

• Maintain a distance of at least one-and-one-half times structure height, or 20 feet, or the

distance required by applicable law, whichever is greater, between overhead utility lines and
the structure (tripod, tower, attachments, or tools).

• Prior to performing site or installation work, inform all utility companies and have all

underground utilities marked.

• Comply with all electrical codes. Electrical equipment and related grounding devices should

be installed by a licensed and qualified electrician.

Elevated Work and Weather

• Exercise extreme caution when performing elevated work.

• Use appropriate equipment and safety practices.

• During installation and maintenance, keep tower and tripod sites clear of un-trained or non-

essential personnel. Take precautions to prevent elevated tools and objects from dropping.

• Do not perform any work in inclement weather, including wind, rain, snow, lightning, etc.

Maintenance

• Periodically (at least yearly) check for wear and damage, including corrosion, stress cracks,

frayed cables, loose cable clamps, cable tightness, etc. and take necessary corrective actions.

• Periodically (at least yearly) check electrical ground connections.

WHILE EVERY ATTEMPT IS MADE TO EMBODY THE HIGHEST DEGREE OF SAFETY IN ALL CAMPBELL SCIENTIFIC PRODUCTS,
THE CUSTOMER ASSUMES ALL RISK FROM ANY INJURY RESULTING FROM IMPROPER INSTALLATION, USE, OR
MAINTENANCE OF TRIPODS, TOWERS, OR ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS,
ENCLOSURES, ANTENNAS, ETC.

Table of Contents

PDF viewers: These page numbers refer to the printed version of this document. Use the
PDF reader bookmarks tab for links to specific sections.

1. Introduction ................................................................. 1

1.1 General Description ............................................................................. 1

1.2 Computer Requirements ...................................................................... 3

2. Specifications ............................................................. 3

3. Installation ................................................................... 3

3.1 Connecting to Datalogger .................................................................... 3

3.2 Connecting to Earth Ground ................................................................ 5

3.3 LoggerNet Setup .................................................................................. 6

3.4 Telephone to MD485 or Telephone to RF Systems ............................. 7

3.5 Telephone Service ................................................................................ 7

3.6 Connecting to a Surge Protector .......................................................... 8

4. Modem Settings .......................................................... 9

5. Troubleshooting........................................................ 10

Appendices

Changing COM220 Settings ................................... A-1

A.

A.1 DIP Switch Settings ........................................................................ A-1

A.2 Hayes AT Commands ..................................................................... A-2

A.3 Downloading a New Operating System to the COM220 ................ A-6

A.4 Program Examples .......................................................................... A-7

A.4.1 ModemCallback Example (for CR1000) ................................. A-7

A.4.2 DialModem Example (for CR1000) ........................................ A-8

A.4.3 P97 Instruction (for CR10X) ................................................... A-9

A.4.4 Example Programs for Data Callbacks via a CR1000

Datalogger Router .............................................................. A-11

B. CS I/O Connection .................................................. B-1

B.1 CS I/O 9-Pin Connection ................................................................. B-1

C. Theory of Operation ................................................ C-1

C.1 Theory of Operation ......................................................................... C-1

D. FCC Warning to Users of Class B Computing

Devices .................................................................. D-1

E. IC Information ......................................................... E-1

i

Table of Contents

Figures

Tables

1-1. COM220 DIP switches. Five screws and outer cover must be

removed for access to DIP switches. ............................................... 1

1-2. COM220 .............................................................................................. 2

3-1. CR1000 and COM220 using remote telephone line ............................ 4

3-2. CR10X with CR10 wiring panel and COM220 using RJ11C

telephone jack .................................................................................. 5

3-3. Top view of surge-suppressor wiring .................................................. 8

3-4. Side view of surge-suppressor wiring ................................................. 9

A-1. COM220 to computer connection ................................................... A-3

A-2. Device Configuration screen ........................................................... A-4

A-3. Terminal Emulator screen in Device Configuration ........................ A-5

A-4. Send OS screen in Device Configuration ........................................ A-7

B-1. CS I/O pinout .................................................................................. B-1

1-1. Default DIP Switch Settings ................................................................ 2

3-1. Dataloggers that Require Direct 12-Vdc Connection to COM220 ...... 4

A-1. Selecting ME Baud Rates via DIP Switches 3 and 4 ....................... A-2

A-2. Maximum Datalogger ME Baud Rates ........................................... A-2

ii

IMPORTANT

COM220 Telephone Modem

1. Introduction

1.1 General Description

The COM220 modem is a selectable-baud-rate modem employing the Hayes
AT command set. Its primary use is as a remote-site phone modem connected
to a CSI datalogger. The modem is powered and enabled by the battery­powered datalogger. When not active, the COM220 draws 100 to 120 µA from
the datalogger’s 12-Vdc output. During a call, it draws about 30 mA.

The COM220 is a replacement for the COM210. However, the COM220
supports both synchronous device communication (SDC) and modem enable
(ME) communication, as well as various ME baud rates (9600 to 115200). The
default setting for the COM220 at shipping is SDC7 (see Appendix A,
Changing COM220 Settings, for details).

The default settings ARE NOT compatible with dataloggers
that have non-PakBus operating systems (for example,
CR510, CR10X, CR23X, CR7, CR5000). However,
compatibility with non-PakBus dataloggers is easily
achieved by changing DIP switch settings (
you want to use the COM220 as a drop-in replacement for
the COM210, the COM220 settings should be changed to
modem enable (DIP switch 1 open) and 9600 baud (DIP
switches 3 and 4 open). Instructions for configuring the
COM220 are described in Appendix A
Settings.

, Changing COM220

FIGURE 1-1). If

FIGURE 1-1. COM220 DIP switches. Five screws and outer cover

must be removed for access to DIP switches.

1

COM220 Telephone Modem

TABLE 1-1. Default DIP Switch Settings

DIP Switch Default Setting

1 Closed

2 Open

3 Closed

4 Closed

5 Open

6 Open

7 Open

8 Open

The COM220 is connected to a CSI datalogger by a 9-pin subminiature D
cable. This is the same 9-pin CS I/O interface common to all Campbell
Scientific dataloggers (except the CR200 series). This is not an RS-232
connection. Appendix B, CS I/O Connection, describes the CS I/O interface.

The COM220 can be used as an originate modem at the datalogger site. For
newer PakBus dataloggers (for example, CR800, CR1000, CR3000), use the
ModemCallback instruction or the DialSequence and DialModem instructions
to program the datalogger to originate a call to the computer. For non-PakBus
dataloggers (for example, CR510, CR10X, CR23X) and older PakBus
dataloggers (for example, CR10XPB, CR23XPB, CR510PB) use Instruction 97
to program the datalogger to originate a call to the computer. Refer to your
datalogger manual and LoggerNet Help files for detailed descriptions of these
instructions. In addition, Appendix A.4, Program Examples, includes sample
programs for the ModemCallback, DialModem, and P97 instructions.

The COM220 features a built-in speaker to allow monitoring of calling and
connection. See Appendix A.2, Hayes AT Commands, for the Hayes AT
commands that affect the speaker on/off and volume settings.

2

FIGURE 1-2. COM220

1.2 Computer Requirements

A Hayes-compatible modem is used at the computer site with Campbell
Scientific computer software to call the datalogger attached to the COM220.
The computer’s modem must be configured to the proper settings using a set of
modem-initialization strings in the software program’s pick list.

2. Specifications

Standards: V.92, K56Flex, V.90, V.34, V.32bis, V32,

Registration: FCC US: 3A4M508BSM2-T-W

IC 2377 A-SM2TW
TBR21

Operating voltage: 12 Vdc

Current drain: 100 to 120 μA quiescent; 30 mA active

Communication rate between
datalogger and COM220: 9600, 38400, 57600, 115200 bps (selected

COM220 Telephone Modem

V23, V22bis, V22, V.21, B212, B103

by user)

3. Installation

3.1 Connecting to Datalogger

Operation: Full-duplex over standard, analog phone

lines

Operating temperature: –25° to +50°C std, –55° to +85°C optional

Dimensions: 16.5 x 2.5 x 6.6 cm (6.5 x 1.0 x 2.6 in)

Weight: 0.16 kg (0.35 lb)

The COM220 is designed to be used with standard, analog telephone lines. It
will not work with a digital telephone line. Connection to telephone company­provided coin service (central office implemented systems) is prohibited.
Connection to party-line service is subject to state tariffs.

Connect the cable from the telephone RJ11C jack to the modem as shown in
FIGURE 3-2. If the telephone company has not installed surge protection in
the telephone line (no RJ11C jack), one must install surge protection (pn 6362
or 4330) and connect both the ring and tip terminal blocks as shown in
FIGURE 3-1.

Current Campbell Scientific dataloggers provide 12 Vdc to the COM220 from
the CS I/O port via the SC12 cable (FIGURE 1-2). Older dataloggers do not
provide 12 Vdc on their CS I/O port. When used with the older dataloggers
listed in TABLE 3-1, 12 Vdc and ground need to be connected via the green
power connector on the side of the COM220 (see FIGURE 3-2).

3

COM220 Telephone Modem

TABLE 3-1. Dataloggers that Require Direct

12-Vdc Connection to COM220

CR10(X) with silver wiring panel

CR10(X) with black CR10 wiring panel (pn 8032)

21X(L) — serial number 13,442 or lower

CR500  serial number 1764 or lower

CR7, CR700X — serial number 2778 or lower

FIGURE 3-1. CR1000 and COM220 using remote telephone line

4

COM220 Telephone Modem

CAUTION

14-AWG Ground Wire

Red

(+12V)

FIGURE 3-2. CR10X with CR10 wiring panel and COM220 using

RJ11C telephone jack

3.2 Connecting to Earth Ground

Connect the green 14-AWG grounding wire (provided with the COM220) to
the ground terminal (GND) on the COM220 and to the enclosure’s earth
ground connection. If the site does not have a grounded enclosure, connect the
ground wire directly to an earth ground connection. The datalogger ground
should also be tied to the earth ground (see FIGURE 3-1 and FIGURE 3-2).

The modem must be grounded for its transient protection to
work.

5