B&B Electronics UNO-2170 Battery Backup Sram, Reset Button, Lithium Battery Specification

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2.10 Battery Backup SRAM

UNO-2170 provides 512 KB of battery backed SRAM. This ensures that you have a safe place to store critical data. You can now write software applications without being concerned that system crashes will erase criti- cal data from the memory.

There is a BTRY LED in the front panel of the UNO-2170, please replace the lithium battery with a new one if the BTRY LED is activated.

2.10.1 Lithium Battery Specification

Type: BR2032 (Using CR2032 is NOT recommended)

Output voltage: 3 VDC

Location: the backside of UNO-2170 board.

Figure 2.5: The location of the lithium battery for SRAM

2.11 Reset Button

Press the "Reset" button to activate the reset function. (SW1)

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Chapter2

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Contents UNO-2170 Support Product Warranty Page Contents Appendix Programming the Watchdog Timer System Settings and Pin AssignmentsAppendix Overview Introduction Relative humidity 95% @ 40C Weight 1.6 kg Hardware SpecificationsAlways ground yourself to remove any static electric Safety PrecautionsChassis Dimensions Chassis DimensionsPage Hardware Functionality Front panel of UNO-2170 RS-232 Interface COM1~COM21 16C550 UARTs with 16-byte standard RS-232/422/485 Interface COM3~COM42 RS-422/485 detection Automatic Data Flow Control Function for RS-4855 RS-232/422/485 Selection RS-422/485 jumper settingPage Vector address for share IRQ 1D0H IRQ and Address SettingPower Connector LAN Ethernet ConnectorPS/2 Keyboard and Mouse Connector USB ConnectorPcmcia PC Card Slot VGA Display ConnectorBattery Backup Sram Reset ButtonLithium Battery Specification Page Initial Setup Chassis Grounding Inserting a CompactFlash CardConnecting Power Installing a Hard DiskBios Setup and System Assignments Page System Settings Pin Assignments 1SystemI/OAddressandInterruptAssignment Appendix a System Settings and Pin AssignmentsTable A.2 UNO-2170 Interrupt Assignment Figure A.2 UNO-2170 connector and jumper locations back-side Board Connectors and JumpersTable A.3 UNO-2170 Connectors and Jumpers RS-232 Standard Serial Port COM1~COM2 RS-232/422/485 Serial Port COM3~COM4 Ethernet RJ-45 Connector LAN1~LAN2Phoenix Power Connector PWR USB Connector USB1~USB2 Page Programming Watchdog Timer Appendix B Programming the Watchdog Timer AppendixB