Metretek DCM-200 Uživatelská příručka

Digital Cellular Modem – 200 (DCM-200) User’s Guide Document: 900333 Revision: B June, 2006

xMP32 Login Screen ...5-2 MP32 Start-Up Screen...

11-211.3 ESD Handling Precautions Any electronics device contains components sensitive to ESD (electrostatic discharge). For example people experi

12-112 TECHNICAL SPECIFICATIONS Enclosure Dimensions (See Figures 2-2, 2-3 & 2-4) Width: 6.91 inches (17.6 cm) Height: 8.50 inches (2

12-2 J3 Connector Definitions: J3-1: Circuit common. J3-2: +5.86 volts dc. J3-3: Circuit common. J3-4: +5.86 volts dc. J3-5:

12-3 Receive Frequencies: g20: 824-849 MHz g20, g18: 880-915 MHz g20, g18: 1805-1880 MHz g20, g18: 1930-1990 MHz Transmit Frequencies: g

12-4

13-113 ASCII-HEX-DECIMAL CONVERSION CHART

14-114 WARRANTY INFORMATION The seller warrants its hardware to be free from defects in material and workmanship under normal and proper use for a p

1-11 PRODUCT DESCRIPTION 1.1 Product Overview A traditional electric power meter incorporates an electric motor whose speed of rotation is directly

1-2enclosure is capable of withstanding extremes in temperature and humidity. Standard units come equipped with an internal antenna that conceals the

1-3 - Analog cellular phone service has been used in areas where phone lines do not exist. While the initial purchase price of the service can be hig

1-4 1.3 Communications Scenarios Scenario #1: The DCM-200 initiates a call to the central computer • The DCM-200 determines that a call should be

1-5• If the cellular account includes a feature called SMS (short message service), the computer can send a text message to the DCM-200. When the D

1-6

2-12 INSTALLATION and TECHNICAL INFORMATION 2.1 Unpacking, Damage reports, Item List Upon receipt, inspect the equipment for any potential shippi

2-2 Figure 2-1 Metretek Programmer Cable 2.3 Site Selection for Best Performance WARNING No hazardous area safety approvals have been received

2-3Field site placement for a cellular communications product requires additional consideration in order to obtain optimal signal strength: • Mount

ii WARNING This product contains a radio-frequency transmitter, Motorola Model g18, FCC ID # IHDT6AC1 or Motorola Model g20, FCC ID # IHDT56DB1

2-4 Figure 2-3 Mounting Tab Pattern Figure 2-4 Conduit Entry Hole Pattern

2-5 2.5 Internal Components of the DCM-200 Figure 2-5 Internal View of the DCM-200 (prior to 2006) The main components of the DCM-200 are: •

2-6 • Shield Plate (Not shown in Figure 2-5): Provides a degree of protection for service personnel against electric shock hazard when the shield pl

2-7Figure 2-7 illustrates the physical construction of the adapter, while Figure 2-8 shows the electrical schematic. Figure 2-7 RS-232 to RJ-11 A

2-8 Figure 2-9 Installing the RS-232 to RJ-11 Adapter Board Cable Preparation If the cable coming from the electric meter is not already terminated

2-9 Figure 2-10 Assembly of Data Cable Connector for use with the Elster Alpha meter CAUTION Do not connect a standard telephone line to the ad

2-102.7 AC Power Cable Wiring Connection Figure 2-5 shows the DCM-200 with the conduit entry positions at the bottom. This illustration was shown w

2-11 Figure 2-13 Routing and Connection of AC Mains Power (prior to 2006) Figure 2-14 Routing and Connection of AC Mains Power (2006 and later)

2-12 2.8 AC Line Voltage Selection CAUTION It is extremely important that the line voltage setting matches the actual line voltage. Damage or p

2-13 Figure 2-15 Battery Pack Connector (prior to 2006) Figure 2-16 Battery Pack Connector (2006 and later) If a DCM-200 unit is removed from s

iiiCOMMON QUESTIONS What does this device do? Electric utility meters have historically required a person to visit each site and manually record th

2-142.10 Internal Antennas There are several types of internal antennas including the rigid radio-mounted one shown in Figure 2-17. This antenna is

2-15 Figure 2-19 Installing the Quad-Band Antenna 2.11 External Antennas You may encounter marginal reception areas or locations where buildings a

2-16Every DCM-200 enclosure has been pre-drilled with a 1/4" diameter hole at the upper left-hand side of the enclosure wall. It is necessary to

3-13 INTERNAL CIRCUIT BOARDS 3.1 Power Supply Board The larger circuit board in the DCM-200 serves the dual purpose of acting as the mounting pla

3-2 Figure 3-2 Block Diagram of the 1001-0302 Power Supply Board Here is a brief description of these components: • Fuses F1, F2, F3: Serves to

3-3confirmed otherwise. • Connectors J1 & J3: J1 is the connector for the lithium reserve battery. J3 is the connector that routes power and

3-4 Figure 3-4 Block Diagram of the 1001-0310 Power Supply Board

3-5 3.2 GUTC Board The original GUTC board with the Motorola g18 radio is shown in Figure 3-5. Figure 3-5 GUTC Circuit Board with g18 Radio

3-6The GUTC board with a Motorola g20 radio is shown in Figure 3-6. An earlier g18-based board can be converted to g20 operation using the adapter b

3-7 Figure 3-7 Block Diagram of the GUTC Board Figure 3-8 Block Diagram of the DCM-200 System

ivIs the DCM-200 ready to use immediately? No, there are five important steps before the DCM-200 can be put into service: 1) The ANSI C12-complien

3-8 3.3 GUTC Capacitor Board Installation If the DCM-200 is allowed to originate calls, and the main ac power fails, power will be supplied by a ba

3-9to disconnect ac power or any other connector. 2) Locate the J9 connector, near the corner of the radio. 3) See Figures 3-10 and 3-11. Align

3-10 Figure 3-11 Top View of Capacitor Board Installation

4-14 CELLULAR SERVICE 4.1 GSM Service 4.1.1 GSM Overview GSM is an abbreviation for Global System for Mobile communications. This communications

4-2 4.1.3 Establishing Cellular Service for CSD A cellular account must be activated with the local service provider prior to placing a DCM-200 int

4-3 4.1.4 Requesting a Voice Phone Number or SMS Service As mentioned earlier some cellular service providers do not support the ability to place a

4-4A SIM card allows the cellular account to be moved from one phone to another. Theft is an issue because a person could remove the SIM card from t

4-5 Figure 4-3 Screw Positions for the GUTC Board WARNING Disconnect all power sources before installing or removing the SIM card !! For the

4-6 Figure 4-4 SIM Card Installation for the g20 Radio

5-15 DEVICE CONFIGURATION USING MP32 5.1 Configuration Concept Configuration of a DCM-200 is accomplished using the Metretek Programmer software “

vThe cellular service provider may offer access to the Internet using a service called GPRS (general packet radio service). Data is exchanged in sma

5-25.3 MP32 Software Startup MP32 can operate as a stand-alone program or can work in conjunction with Metretek’s DC-2000 data collection software.

5-3 Figure 5-2 MP32 Start-Up Screen Figure 5-3 MP32 Communication Port Configuration Screen

5-4 The original MP32 screen will now reappear and the user should select the “DCM-200” button to start the configuration process. Figure 5-4 depic

5-55.4 Configuration Settings 5.4.1 Remote Unit ID Each DCM-200 must have a unique ID number to allow the data collection software to identify it.

5-65.4.7 Answer Ring Count This field is always disabled. If the DCM-200 has been configured to respond to voice calls it always answers on the f

5-7required for g18-based units. g20-based units are capable of determining the appropriate frequency. 5.4.16 GPRS Access Point Name If the DCM-20

5-8The next configuration items appear on the Serial Port Settings tab: Figure 5-5 MP32 Serial Port Settings Screen 5.4.19 Max BPS This setting is

5-95.4.22 Stop Bits This setting defines the termination method of each byte. This setting is usually programmable within the electric meter itself,

5-10Starting with firmware version V2.1 a new call retry feature was added that uses Counter/Status Input-2’s phone number or IP address. See Chapte

5-11 Select the individual devices or groups of devices you wish to reprogram and then select OK. In Figure 5-7 only one device has been selected.

viTABLE OF CONTENTS 1 PRODUCT DESCRIPTION ...1-1 1.1 Product Over

5-12 5.7 Firmware Downloads Using the Programming Adapter The entire operating program (“firmware”) of the DCM-200 can be updated without removing

5-13Connect the programming cable to the computer and to the DCM-200’s programming port connector. You have the option to erase the entire program a

5-14 Figure 5-9 Selection List for Over-the-Air Firmware Changes Select the individual devices or groups of devices you wish to reprogram and then

6-16 CONFIGURATION OF DC-2000 DATA COLLECTION SYSTEM 6.1 DC-2000 Overview DC-2000 is a powerful data collection and processing application that c

6-2If installing a new DCM-200, select the “$$DCM200” template. If editing an existing DCM-200, select its remote unit I.D. number from the list.

6-3 6.2.1 Site ID Number This is the most important item on this screen. It defines the Remote Unit ID number of the DCM-200. This number must mat

6-4 Figure 6-4 General Information Screen

6-5“Inputs” are generally not used in electric meter applications, but there is one parameter that must be set correctly, otherwise the call may be r

6-6 Figure 6-6 Input Configuration Screen The DCM-200 is capable of reporting several alarm conditions: “Tamper Detect” Alarm: This alarm occurs

6-7For some alarm conditions you are able to select how the alarm is logged and reported. See Figure 6-7 for a view of the Hardware Alarms Screen.

vii5.4.16 GPRS Access Point Name ...5-7 5.4.17 GPRS Connection Command...

6-86.3 Configuring the ANSI C12-complient Electric Meter Start the process by selecting Remote Unit Configuration from the DC-2000 Applications Lau

6-96.3.3 “Slave Device” Checkbox Checkmark this box if the ANSI device will using a DCM-200 to communicate with the central computer. Seems obviou

6-106.4 Configuring the Data Collection Server Once the DCM-200 and the ANSI device are configured, the data collection application will need some

6-11When the next screen appears, select the Data Collection process. Figure 6-11 DC-2000 Process Selection List In the next screen (Figure 6-12)

6-12ANSI application can only use up to 55 more. Figure 6-12 Internet Ports Configuration Screen Upon completion, the DC-2000 data collection s

7-1 7 DCM-200’S MODES OF OPERATION 7.1 Overview of DCM-200 Operation The DCM-200 is a member of the Metretek “SIP” (Survey Instrument Point) fami

7-2 Figure 7-1 Location of Unit Reset Pins If the DCM-200 has been configured to originate a call to the data collection system, the unit will atte

7-3 CODE DESCRIPTION 11 The serial EEPROM memory device failed to acknowledge that it received data from the processor. 12 The serial EEPROM me

7-4 43 In CSD mode a connection could not be established with the destination modem. 45 In CSD mode after dialing a phone number, the destination m

7-5 7.4 LED Status Behavior If the green LED is not displaying an error code then it is used to indicate the status of the radio: GREEN FLASH RATE

viii8.2 Enclosure Maintenance...8-1 8.3 Troubleshooting the Powe

7-6 3) Once the Primary Call Retry Count is exhausted, subsequent calls will be made at the Secondary Call Retry Interval, which is defined in hours.

7-7 When the call has finished and was successful, both LEDs will light for a minimum of three seconds. If the unit has been configured to originate

7-8 In GPRS mode, unlike Internet servers that have fixed (static) Internet addresses, some mobile devices are assigned temporary (dynamic) addresses

7-9When DC-2000 detects this alarm, it will not attempt to communicate with the ANSI meter in an effort to conserve battery power. Immediately after

7-10

8-18 MAINTENANCE & TROUBLESHOOTING 8.1 Lithium Battery Replacement A special reserve battery pack is provided with each DCM-200 that maintain

8-28.3 Troubleshooting the Power Supply WARNING ! Potentially lethal voltages exist within the DCM-200 enclosure. Only qualified service personne

8-3voltage selector switch is in the correct position. Select either 115 (90-140) or 230 (180-280) VAC, depending upon the actual line voltage to be

8-4removing and installing modules ensure that the precision 28-pin electrical connector is not damaged and that the alignment is correct. If any o

9-19 CONVERSION OF g18-BASED UNITS TO g20 OPERATION 9.1 Description of Problem The original DCM-200 used a Motorola “g18” GSM cellular radio modu

ix LIST OF TABLES Line Voltage Selection (prior to 2006)...2-12 External Ante

9-2 9.3 Loading New Firmware Prior to replacing the radio, the DCM-200 will need new operating software (“firmware”) to accept the g20 radio. Chap

9-3 Figure 9-4 Removal of Antenna and SIM Card 9.5 Installation of the g20 Adapter Assembly 1) Align the three mounting holes of the adapter

9-4 Figure 9-5 Alignment of Adapter Assembly 2) Reinstall the original three screws, spacers and washers as shown in Figure 9-6. The DCM-200 boar

9-5 Figure 9-7 Installing the Quad-Band Antenna Remove the paper backing from the adhesive strip on the back of the antenna. Position the antenna o

9-6 Figure 9-8 Installation of Antenna and SIM Card 5) Reconnect the power cable to the J1 connector. Figure 9-9 Reconnection of Power 9.6 Powe

10-110 DIRECT RADIO COMMUNICATIONS GUIDE 10.1 Overview In units with firmware version V2.4 or later, a special diagnostic mode allows an RS-232 d

10-2 DCM-200 9-Pin ‘D’ Connector 25-Pin ‘D’ Connector TB2-1 (Tx) 2 3 TB2-4 (Rx) 3 2 TB2-6 (GND) 5 5 Table 10-1 Typical Connections to

10-3 Figure 10-2 Location of the Reset and Call Jumpers

10-4

11-111 SAFETY and ESD INFORMATION 11.1 Cellular Radio Safety To comply with the FCC RF exposure limits and satisfy the categorical exclusion requ