Campbell COM220 Manuale utente

COM220 Telephone Modem

Revision: 4/12

Campbell Scientific, Inc.

Warranty

“PRODUCTS MANUFACTURED BY CAMPBELL SCIENTIFIC, INC. are

warranted by Campbell Scientific, Inc. (“Campbell”) to be free from defects in

materials and workmanship under normal use and service for twelve (12)

months from date of shipment unless otherwise specified in the corresponding

Campbell pricelist or product manual. Products not manufactured, but that are

re-sold by Campbell, are warranted only to the limits extended by the original

manufacturer. Batteries, fine-wire thermocouples, desiccant, and other

consumables have no warranty. Campbell's obligation under this warranty is

limited to repairing or replacing (at Campbell's option) defective products,

which shall be the sole and exclusive remedy under this warranty. The

customer shall assume all costs of removing, reinstalling, and shipping

defective products to Campbell. Campbell will return such products by surface

carrier prepaid within the continental United States of America. To all other

locations, Campbell will return such products best way CIP (Port of Entry)

INCOTERM® 2010, prepaid. 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 Campbell such as programming to customer specifications,

electrical connections to products manufactured by Campbell, and product

specific training, is part of Campbell’s product warranty. CAMPBELL

EXPRESSLY DISCLAIMS AND EXCLUDES ANY IMPLIED

WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A

PARTICULAR PURPOSE. Campbell is not liable for any special, indirect,

incidental, and/or consequential damages.”

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 (435) 227-9000. After an applications 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 repair@campbellsci.com or faxed to

(435) 227-9106. 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.

COM220 Telephone Modem

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 ...........................................................................2

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

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

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

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

3.3 Telephone to MD485 or Telephone to RF Systems..................................6

3.4 Telephone Service ....................................................................................6

3.5 Connecting to a Surge Protector ...............................................................6

4. Modem Settings ...........................................................8

5. Troubleshooting ..........................................................9

Appendices

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

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

COM220 Telephone Modem Table of Contents

D. FCC Warning to Users of

Class A Computing Devices..............................D-1

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

List of Figures

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

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

2. COM220 .................................................................................................... 2

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

4. CR10X with CR10 wiring panel and COM220 using RJ11C telephone

jack.......................................................................................................... 5

5. Top view of surge suppressor wiring......................................................... 7

6. Side view of surge suppressor wiring ........................................................ 8

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 pin out .................................................................................... B-1

List of Tables

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-rate ................................................ A-2

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 battery-

powered 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 settings for the COM220 at shipping are SDC7, and PakBus ready

(see Appendix A for details).

The default settings ARE NOT compatible with dataloggers

that have non-PakBus operating systems (e.g., CR510,

CR10X, CR23X, CR7, CR5000). However, compatibility

with non-PakBus dataloggers is easily achieved by

changing DIP switch settings (Figure 1). If 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.

IMPORTANT

FIGURE 1. COM220 DIP switches. Five screws and the outer cover must

be removed for access to the DIP switches.

COM220 Telephone Modem

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 describes the CS I/O interface.

The COM220 can be used as an originate modem at the datalogger site. For

newer Pakbus dataloggers (e.g., 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 (e.g., CR510, CR10X, CR23X), and for older PakBus dataloggers

(e.g. 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 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 for the Hayes AT commands that affect the

speaker on/off and volume settings.

FIGURE 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.

COM220 Telephone Modem

2. Specifications

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

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

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

by user)

Operation: Full-duplex over standard analog phone

lines

Operating temperature: -25° to +50°C std, -40° 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 lbs)

3. Installation

The COM220 is designed to be used with standard analog telephone lines. It

will not work with a digital telephone line. Connection to telephone-company-

provided coin service (central office implemented systems) is prohibited.

Connection to party line service is subject to state tariffs.

3.1 Connecting to Datalogger

Connect the cable from the telephone RJ11C jack to the modem as shown in

Figure 4. If the telephone company has not installed surge protection in the

telephone line (no RJ11C jack), one must install surge protection (CSI item

number 6362 or 4330) and connect the ring and tip terminal blocks as shown

in Figure 3.

Current Campbell Scientific dataloggers provide 12 VDC to the COM220 from

the CS I/O port via the SC12 cable (Figure 2). Older dataloggers do not

provide 12 VDC on their CS I/O port. When used with the older dataloggers

listed in Table1, 12 VDC and ground need to be connected via the green power

connector on the side of the COM220 (see Figure 4).

COM220 Telephone Modem

TABLE 1. Dataloggers that Require Direct

12 VDC Connection to COM220

CR10(X) with silver wiring panel

CR10(X) with black CR10 wiring panel (P/N

8032)

21X(L)—serial number 13,442 or lower

CR500⎯serial number 1764 or lower

CR7—700X serial number 2778 or lower

SE 12 34 56 78

1234

DIFF

EX1

HLHLL

12VG

DC ONLY

CAUTION

LUG

GROUND

POWER IN

WIRING PANEL

CR1000

PERIPHERAL PORT

RS-232 (Not Isolated)

SN:

CS I/O

MADE IN USA

109

SE 15 1613 1412

DIFF

EX2

HLHLL

EX3

5678

SW-12

12V

COM1

Rx Tx Rx Tx Rx Tx Rx

COM2 COM3 COM4

POWER OUT

SDM

G 12V

Burial Phone Cable

Blue = Ring

Blue/White = Tip

Phone Line

Transient Protector

(Model 6362 or 2372-01)

SC12 Cable

Earth

Ground

FIGURE 3. CR1000 and COM220 using remote telephone line

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