• 1 PCI/104 slot Note: COM1 and COM2 only support half-duplex (Maximum baud rate: 115.2Kbps) 1.2.3 Safety and Environment Safety • FCC Class A • CE certificated • The front bezel is compliant with NEMA 4 and IP65 3 Chapter 1 Environment • Operating Temperature: 0 ~ 50° C (32 ~ 122° F) • Storage Temperature: -20 ~ 60° C (-4 ~ 140° F) • Humidity: 40° C @ 10~95% relative humidity (non-condensing) • Vibration: 1 grms (5~500Hz) 1.3 LCD Specifications • Display Type: TFT color LCD • Size (diagonal): 1

The user may change this. Default is 255.255.255.0 Gateway The Gateway IP address allows users to access the Serial Server from outside the LAN. MAC Address The MAC address is fixed and cannot be changed. It is assigned in the factory. Every Ethernet device manufactured has it own unique MAC address. Version & Date The currently loaded version of the firmware, and when it was released, is shown here. Link Status Link status automatically displays the type of Ethernet connection. It will either d

) -- 2 Receive Data RXD In RXDB (+) - 3 Transmit Data TXD Out TXDB (+) Data B (+) 4 Data Terminal Ready DTR Out TXDA ( . ) Data A ( . ) 5 Signal Ground GND --- GND GND 6 Data Set Ready DSR In CTSA ( . ) -- 7 Request To Send RTS Out CTSB (+) -- 8 Clear To Send CTS In RTSB (+) -- 9 Ring Indicator RI In RTSA ( . ) Figure 11. Serial Connection Pin- outs for RS-232/RS-422/RS-485 N NNo oot tte ee: :: For more information on RS-232, RS-422 and RS-485 pin-outs, cable connections and loopback connections

Step 2: Select the Search all reachable servers check box, then click OK. Figure 38. The Search Setup Window Manual Documentation Number: ESP901- 902- 3704 Chapter 6 43 B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815- 433- 5100 - Fax 815- 433- 5104 – B&B Electronics Ltd – Westlink Commercial Pk – Oranmore, Galway, Ireland – Ph +353 91- 792444 – Fax +353 91- 792445 – Installing Virtual COM Port The program searches the LAN for all available Serial Servers. When

Co. Inc. 707 Dayton Road Ottawa, IL 61350 USA Phone (815) 433-5100 --General Fax (815) 433-5105 Website: Sales e-mail: orders@bb-elec.com --Fax (815) 433-5109 Technical Support e-mail: support@bb.elec.com --Fax (815) 433-5104 European Headquarters B&B Electronics Ltd. Westlink Commercial Park Oranmore, Co. Galway, Ireland Phone +353 91-792444 --Fax +353 91-792445 Website: Sales e-mail: sales@bb-europe.com Technical Support e-mail: support@bb-europe.com © B&B Electronics – May 2006 Manual Documen

The MES1A/B must use the same type of interface and serial parameters as that of the Modbus device it is connected to. MES1A Serial Interface Since the MES1A is designed with an RS-232 interface, its default Interface Type is RS-232. Although RS-422/485 four-wire and RS-485 two-wire options are given in the configuration menu, reconfiguring the MES1A for anything other than RS-232 will prevent the device from operating correctly. MES1B Serial Interface The MES1B is designed with an RS-422/485 in

The Heart Beat feature is available for use in Virtual COM Port Mode and Paired Connection Mode. This is not available when using a UDP application. Chapter 1 Manual Documentation Number: ESR90x-0508m B&B Electronics Mfg Co Inc – 707 Dayton Rd - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – Introduction Serial Server Quick Start Guide For descriptive purposes this Quick

Front View of the ESR901, ESR902 and ESR904 Serial Servers Manual Documentation Number: ESR90x-0508m Chapter 2 B&B Electronics Mfg Co Inc – 707 Dayton Rd -Ottawa IL 61350 -Ph 815-433-5100 -Fax 815-433-5104 – B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – Making the Hardware Connections ESR90x Indicators, Switches and Connectors Indicators • One bi-color Link LED (Yellow = 10BaseT, Green = 100Base T) • One green Ready LED (fla

Set the Run/Console DIP switch on the Serial Server to the Run position LAN Ethernet cable Ethernet cable RS-232 cable ESR902 PC Serial Device Figure 19. Ethernet Connection via a LAN Manual Documentation Number: ESR90x-0508m Chapter 4 B&B Electronics Mfg Co Inc – 707 Dayton Rd -Ottawa IL 61350 -Ph 815-433-5100 -Fax 815-433-5104 – B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – Using ESP Manager Ethernet crossover cable RS-232

Install failsafe mechanisms, perform redundancy checks and periodic inspections and adopt other appropriate safety measures when it is necessary. This manual uses the following symbols to ensure safe operation of this timer. ^ WARNING yVam'n9s are indicated when mishandling this product might result in death or serious injury ArAIITION Cautions are indicated when mishandling this product might result in minor injury to the user, vmu i ivn or on|y physical damage to the timer. A WARNING • No