Unicom 2500 User Manual V.1.03
Contents
1. AC XFORMER Port Z ote 232 LI 485 FO 232 485 Baud Rate Sele HD E Fiber Optic Port RX TX TX RX TX RX GND RS 485 Port Device with Fiber Optic Port Electro Industries cun Unicom Installation amp Operation HOOKUP DIAGRAMS 5 485 OPTIC CONVERSION 2Wire Half Duplex installation AC XFORMER RS 232 Port EI ote reit Bus Devices 232 485 FO 232 485 Baud Rate Selector ET Fiber Optic Port RX TX TX RX TX RX GND jumpers short RX to TX shield short RX to TX MA A 2 Twisted pair shielded cable Device with Fiber Optic Port Electro Industries Unicom Installation amp Operation HOOKUP DIAGRAMS RS 485 FIBER OPTIC CONVERSION ii 4Wire Full Duplex installation S 2 port D EI ote HS Bus Devices 232 485 FO 232 485 Baud Rate Selector Em x 4 Fiber Optic Port RX TX TX RX TX RX GND QO Bil RS 485 Port shield Twisted pair shielded cable Device with Fiber Optic Port 6 Electro Industries snet Unicom Installation 8 Operation DESCRIPTION FEATURES SWITCHES DTE DCE Configures the wiring of the RS 232 port When DCE Data Communication Eguipment is selected the Unicom 2500 receives data on Pin3 and transmits on Pin2 DB 9 connector When2. DTE Data Terminal Eguipment is selected Pin3 is the transmit and Pin2 is the receive For example if the Unicom 2500 is connected to a computer DCE should be selected If it is connected to a modem or another Unicom 2500 with DCE selected DTE should be selected CONFIGUARATION SWITCH RS232 FO RS232 RS485 RS485 FO only for units with Fiber Optic Option Determines the path for the throughput FD HD Full Duplex Half Duplex RS 485 Used to setup the Unicom 2500 for Full Duplex or Half Duplex mode Full duplex requires a 4 wire hookup on the RS 485 Bus to enable simultaneous receive and transmit In this mode the Baud Rate Selector Switch is not enabled since there is no need to control the RS 485 transmit driver Receive is constantly enabled Half Duplex mode requires only two wires to be hooked up on the RS 485 Bus In this mode transmit and receive signals are on the same pair of wires When the unit is transmitting the receive device is disabled when the transmission is complete the unit is then in the receive mode receive enabled The Unicom 2500 automatically controls this operation It only needs the Baud Rate to determine the turnaround time from transmit to receive therefore the Baud Rate selection switch must be in the right position See also software firmware considerations in Half Duplex mode Pg 11 Halfl Duplex installation requires these modifications on the RS 485 connection port TX Pin connected to RX Pi
3. the last device on the transmission line RX TX First Device i Last Device i x pcr Connection to other devices Fig 1 Full Duplex installation with terminating resistors In Half Duplex two wire installation there are only two terminating resistors to hook up Electro Industries smet 10 Unicom Installation amp Operation Software Firmware considerations when using RS 485 Half Duplex two wire installation In Half Duplex mode care must be taken in order to achieve successful operation The automatic control of the Unicom 2500 detects the transitions on the incoming RS 232 or Fiber Optic optional receive line When a transition occurs it enables the transmit driver of the RS 485 port After the last transition is detected the unit holds transmit enable for 13 bit times disables the transmit driver and then enables the receive device of the RS 485 port In order to avoid collisions on the transmission line a time delay of at least 13 bits must be inserted before transmitting back to Unicom 2500 Electro Industries smet 11 Unicom Installation amp Operation DIN Rail Mounting Procedure The Unicom 2500 comes with a Mounting Plate kit consisting of a mounting plate and three screws for attaching it to the back of the Unicom 2500 and a DIN Rail Clip kit consisting of 2 DIN rail mounting clips with an 8mm screw and lock washer for each clip The mounting plate kit is in the plastic bag a
4. User Manual UNICOM 2500 e Installation Operation Programming im Universal Communication Converter UNICOM 2500 Electro Industries haugelech 1800 Shames Drive Westbury New York 11590 Tel 516 334 0870 Fax 516 338 4741 www electroind com ELELTRO INDUSTRIES UNICOM 2500 UNIVERSAL COMMUNICATION COVERTER USER S INSTALLATION 8 OPERATION MANUAL Version 1 3 11 2014 1800 Shames Drive Westbury New York 11590 Tel 516 334 0870 516 338 4741 UNICOM 2500 Address Electro Industries Gaugetech EIG 1800 Shames Drive Westbury New York 11590 U S A For Customer or Technical Assistance Repair and Calibration Phone 516 334 0870 Fax 516 338 4741 Customer Support amp Repair Service Customer support is available 9 00 A M to 4 30 P M Eastern Time Monday through Friday Please have the model serial number and a detailed problem description available If the problem concerns a particular reading please have all meter readings available When returning any merchandise to E LG a return authorization number is required PRODUCT Electro Industries GaugeTech warrants this product to be free from defects in material and WARRANTY workmanship for a period of 1 year from date of shipment During the warranty period we will at our option either repair or replace any product that proves to be defective To exercise this warranty fax or call our customer service department You will receive pr
5. al may be reproduced or transmitted in any form or by any means electronic or mechanical including photocopying recording or information storage or retrieval systems or any future forms of duplication for any purpose other than the purchaser s use without the expressed written permission of Electro Industries GaugeTech Copyright C 2014 Electro Industries GaugeTech rights reserved Printed in the United States of America UNICOM 2500 SPECIFICATIONS Power Voltage Reguirements Maximum Power Consumption Isolation Voltage Data rate Switches Indicator Lights Connectors Enclosure Outside Dimensions Mounting Operating Temperature Port Configuration 9Vdc 30Vdc or 7Vac 20Vac 3VA 2500Vrms RS232 to RS485 1200 115 000 baud DTE DCE selection HALF FULL duplex selection HD FD 232 F O 232 485 485 FO selection Only with fiber optic option TX transmit RS232 or Fiber Optic RX receive RS232 or Fiber Optic CTRL control RS485 ERR error 5232 or Fiber Optic DB 9 RS 232 5 screw terminal RS 485 ST receive and transmit Fiber Optic optional Rugged aluminum resistant to Electro Magnetic Interference L 4 79 124mm W 2 4g 65mm Hz 1 25 Stand alone or wall mounted with mounting plate supplied 20C to 70C RS232 9 Pin Female RS485 4 wire and 2 wire connector Fiber Port 50 125um 62 5 125um and 100 140um fiber sizes using ST ter
6. minated cables Wavelength 820nm Electro Industries cun Unicom Installation amp Operation CONNECTORS RS 232 Port Switch Position DCE DTE pin name pin name Rear view of enclosure FIBER OPTIC PORTS optional The Fiber Optic ports accept ST terminated fibers 50 125um 62 5 125um 100 140um TX RX Rear view of enclosure Power Connection DC Jack barrel type not polarized Outside diameter 5 5mm Inside diameter 2 5mm Electro Industries Unicom Installation amp Operation HOOKUP DIAGRAMS RS 232 RS 485 CONVERSION 4 Wire Full Duplex installation COMPUTER DTE AC XFORMER Port I rE Bus Devices 232 FO LLLI 485 FO 232 485 Baud Rate Selector HD D Fiber Optic Port RX TX TX RX TX RX GND Twisted pair shielded cable Electro Industries smete 3 Unicom Installation amp Operation HOOKUP DIAGRAMS RS 232 RS 485 CONVERSION 2 Wire Half Duplex installation COMPUTER DTE AC XFORMER RS 232 Bus Devices Port EE ote 232 FO 485 FO 232 485 Baud Rate Selecto HD T Fiber Optic Port TX RX TX RX GND RS 485 Port RX TX jumpers short RX to TX short RX to TX Twisted pair shielded cable Electro Industries cun Unicom Installation amp Operation HOOKUP DIAGRAMS RS 232 FIBER OPTIC CONVERSION COMPUTER DTE
7. n use jumper wire TX Pin connected to RX Pin use jumper wire Baud Rate Selector Switch For Half Duplex two wire setup only Sets up the current communication Baud Rate Range 1200 to 115000 Baud Electro Industries smet 8 Unicom Installation amp Operation STATUS LIGHTS Power Indicates the unit is on RX Indicates the RS 232 or Fiber Optic port is receiving TX Indicates the RS 232 or Fiber Optic port is receiving ERR Indicates an illegal condition on the RS 232 or Fiber Optic port A start bit is detected on the RS 232 or Fiber Optic receive line but there is no data This condition would enable the transmit driver on the RS 485 port forever which would load down the RS 485 Communication Bus When the ERR light comes on Unicom 2500 automatically disables the transmit driver to prevent this unwanted situation Such a condition is usually caused by software firmware lockup A new start bit will reset the unit CTRL indicates the RS 485 port data direction and is used only in Half Duplex mode The On state indicates transmit the Off state indicates receive Electro Industries smet 9 Unicom Installation amp Operation RS485 WIRING For long distances or higher baud rates use high quality twisted pair shielded cable Termination of the transmission line is also recommended The termination resistor is usually 100Q 1 2W and not less than 900 Termination resistors should be hooked up at the first device and
8. ompt assistance and return instructions Send the instrument transportation prepaid to the address above Repairs will be made and the instrument will be returned LIMITATION This warranty does not apply to defects resulting from unauthorized modification misuse OF use for any reason other than electrical power monitoring This unit is not to be used for WARRANTY primary over current protection Any protection feature in this unit is to be used for alarm or secondary protection only This warranty is in lieu of all other warranties expressed or implied including any implied warranty of merchantability or fitness for a particular purpose Electro Industries GaugeTech shall not be liable for any indirect special or consequential damages arising from any authorized or unauthorized use of any Electro Industries GaugeTech product STATEMENT This instrument has been inspected and tested in accordance with specifications published OF by Electro Industries GaugeTech The accuracy and calibration of this instrument CALIBRATION traceable to the National Bureau of Standards through equipment which is calibrated at planned intervals by comparison to certified standards DISCLAIMER Information presented in this publication has been carefully checked for reliability however no responsibility is assumed for inaccuracies The information contained in this document is subject to change without notice COPYRIGHT No part of this manu
9. ttached to the Unicom 2500 and the DIN Rail Clip kit is in a plastic bag in the Unicom 2500 box The mounting plate and clips let you easily attach the unit to a DIN Rail To use the DIN rail mounting clips follow this procedure 1 Attach the mounting plate to the back of the Unicom using the three screws packaged with it Screw mounting plate onto back of the Unicom 2500 2 Using the screws provided in the DIN Rail Clip kit attach the clips to the back of the mounting plate using the two side holes as shown in the drawing below 3 4 E C i ASN IS ini SJ Unicom Installation 8 Operation Fromthe front of either bracket insert the screw into the lock washer and through the hole and screw it into the clip using an appropriate screwdriver Note that the clip should be positioned as shown above with the indented side facing the back b Repeat step a for the second bracket 3 To attach the clips to the DIN rail hook the bottom of the clips around the bottom of the DIN rail and then push the top of the clips forward so that they fit over the top of the DIN rail See the figure below 2 Fit this over the DIN rail 1 Hook these under the DIN rail Electro Industries caucETECH Unicom Installation 8 Operation 13
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