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The BaseBoard is the central component of the Open System Controller. All components on the BaseBoard hold industrial
environmental ratings. The board, as shown, includes 1MB of SRAM, 1MB of Flash RAM, and a 16MB DRAM SIMM.
The board is firmware-free. A factory or diagnostic program-loaded BIOS and boot program called the Executive Boot Program (EBP)
provides initial startup and checkout (POST functions), and verifies the presence and condition of the controller's operating programs
and data. The BaseBoard also contains two software modules: the Executive and the Application Programs. The Executive is the OSC's
operating system. The Application Programs are the programs required to support access control, alarm monitoring and any other custom processes.
Any developer may modify the Security Applications Programs available for the OSC to meet new or different needs. Software
Development Kits (SDKs) provide all of the information necessary to replace the underlying hardware on which the controller software is
deployed and are available under license.
FLEXIBLE PORT CONNECTION CAPABILITY
The usage of any individual port on the board is not fixed. Unused ports may be reassigned for other purposes through appropriate configuration data assignments.
Server Port Connections
Either of the two communications ports on the BaseBoard can be configured as an RS232 or RS485 electrical interface. As an RS232
port, full duplex, bi-directional communications are supported. As an RS485 port, communications is half-duplex. Both use a 10-pin plug
connector. Server Port 1 defaults to RS485; Server Port 2 defaults to RS232. By default, the BaseBoard will first listen to Server Port 1
and then Server Port 2 for valid communications from the server. It will adopt the first server port from which it receives valid communications.
BaseBoard Package Data
The BaseBoard Assembly (ICS Part Number OSC101) includes the following items:
- 1 BaseBoard with 16 DRAM SIMM, and Universal Chassis
- 1 Tamper Switch
- 1 BaseBoard Pin Plug Connector Kit
- 1 OSC Power Harness
- 1 Reader Power Harness
- 1 Buss Expansion Ribbon Cable
- 1 Connector Label Set
- 1 Resistor Network Kit
- OSC Controller Installation Card
- OSC Installation and Service Manual
Address Configuration Ports
Two rotary dial switches are used to assign an address to the OSC baseboard. Addresses from 00 to 99 are supported, with 00 placing
the OSC into a diagnostic mode.
Console Port Connection
The console is connected through a RS232 electrical interface using a single DB9 connector which supports full duplex, bi-directional
communications. This port supports all standard PC control signals for connection to either a laptop or modem.
Universal Data Port Connections
There are two universal data port connectors that are configurable to provide a serial RS232, RS485, Clock & Data, or Wiegand
electrical interface connection. RTS and CTS flow control signals are provided in the connector for use with the appropriate interface.
Four (4) digital outputs (5V, 20ma energized, 20 ma max path to ground de-energized) are also provided. An LED adjacent to each
digital output indicates whether the output is energized.
Digital Input-Output Relay Connections
Two connectors provide digital input and relay output connection pots. Each S12 connector provides users two 4-state digital inputs
and one NO/NC relay output rated at 2.5A @ 250VAC/30VDC. Each digital input is adjacent to two LEDs that indicate the electrical
state of the circuit connected to the input port. Open, short, high, and low resistances are interpreted based on the user's definition of
the normal state of the circuit. Relay outputs have an LED that reflects whether the relay is energized. Each S13 connector
provides two 4-state digital inputs. The control ports provide access to 4-state digital inputs and one relay output with N/O or
N/C connections. The one input port connection provides access to two 4-state digital inputs.
Additional BaseBoard Components
The OSC's SRAM battery is located on the BaseBoard. It is a 3-volt lithium battery with a 2016 case. This battery protects the contents
of SRAM during power outages. The battery's shelf life is approximately 10 years, and can protect SRAM for up to 3 1/2 years.
Other components on the BaseBoard include a power regulator to convert the 12-volt DC to board-required voltage levels, a 60-pin
buss expansion connector used to attach additional Expansion Boards to the BaseBoard, a power supply connector, a reset button,
and a fuse that protects the board from overcurrent.
OSC BASEBOARD SPECIFICATIONS
General Specifications
- ICS Part Number: CBA012:
- Dimensions: 10.25"(H) X 10.25"(W)
- Weight: 10 ounces
- Memory: 16MB DRAM SIMM
- Operating Environment: 35 to 120 degrees Fahrenheit; 10%-90% RH, non-condensing
- Mounting Holes/Location: 4 holes total at 3/32"(D) spaced at 8.27"(H) X 9.750"(W)
OSC Capacities
- Badge Records: 10,000
- Access Area Definitions: 14,000
- Event Transactions: 4,000
- Readers to Areas: 400
- Area Definitions: 40
- Schedule Definitions: 400
- Time Interval Definitions: 2,000
- Holiday Definitions: 200
- Elevator Floor Definitions: 50
- Reader Technology Definitions: 50
- If-Then Definitions: 100
- Command Definitions: 100
- Scheduled Event Definitions: 100
Electrical
- Input Voltage: 12VDC
- Power Consumption: 1.1Amps
- Overload Protection: Type 2AG - 3A fuse @ 250V
Battery and Power Connection
- Battery: SRAM Lithium battery, with 2016 case
- Battery Backup: 1 to 3 12V. Parallel configuration for multiples
Communications
- Communication Ports: 2 - RS232/RS485 user configurable
- Digital Input: 2 state or 4 state, dry contact switches
- Digital Output: Provides 5VDC @20ma maximum
- Relay Output: Contacts rated @ 250VAC/30VDC @ 2.5A
- Expansion Cable Connector: 60-pin Buss Expansion Connector
- Speed: 9600 bps default, 8 bits (one stop bit/no parity)
Status LEDs
- Power
- Server Ports
- Console Port
- Tamper Port
- Communication Ports
- Digital Inputs
- Digital Outputs
- 2-Digit Numerical Display
Switches
- Rotary Address Switches
- Reset Button Switch
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