Janus-MM Dual CAN Ports, Carrier for Wireless and GPS Modules JANUS-MM combines dual CAN interfaces with sockets for wireless communications and GPS to create a complete I/O subsystem for automotive and vehicle tracking applications. The dual CAN ports use the Philips SJA1000T CAN controller and 82C251 transceiver, for full CAN2.0B functionality. Each port is independently isolated from the system to eliminate sensitivity to noise and ground shifts in the network. Jumper options include slew rate control, transceiver power source (on-board or loop power), address, and interrupt settings. Both memory and I/O addressing are supported. For ruggedized applications, 0Ω jumper-bypass resistors can be installed in any configuration. JANUS-MM includes sockets and support circuitry for GSM/GPRS and CDMA wireless communication modules from MultiTech, as well as 8-channel and 12-channel GPS receivers from Trimble Navigation. A connector is provided to supply backup power for the GPS almanac. A built-in dual UART circuit provides the necessary interface to the modules. The add-on modules are available separately based on your desired configuration. See below for information on available modules.
Emerald-MM-8P 8-Channel, Software Programmable PC/104 Serial Port Module Emerald-MM-8P offers 8 multi-protocol serial ports on a single PC/104 module with complete software configurability. Each port can be individually selected for RS-232, RS-422, or RS-485 under software control. Both local-echo and non-local-echo modes are supported for RS-485. I/O addresses and interrupt levels are also programmable, with interrupt sharing available for any number of ports. Each port may further be enabled or disabled in software. All configuration data is stored in an on-board EEPROM that is loaded automatically on power-up. For applications where fixed addresses are desired, four groups of preset addresses are available with jumper settings that override the programmed settings. Line termination for RS-422/485 modes is also jumper-selectable. Emerald-MM-8P offers 8 convenient digital I/O lines. The direction of each line is independently programmable. Two I/O headers are provided, with four serial ports and four digital I/O lines on each header. The board operates on +5V only, eliminating the need for a +12V supply that is often required for serial port operation. Emerald-MM-8P is based on the 16C654 quad serial port IC. This device contains 4 identical sets of registers, one for each port, and is compatible with the standard PC serial port. Each port contains 64-byte transmit and receive FIFOs to support the high-speed 460.8kbps data rates. Model EMM-8P-XT is backward compatible with Diamond Systems EMM-8M-XT and EMM-8232-XT boards.
Emerald-MM-Opto 2 or 4-Port RS-232/RS-422/RS-485 PC/104 Module Emerald-MM-Opto provides an integrated, rugged, and reliable solution for PC/104-expandable embedded systems requiring serial communications in demanding applications. It offers 2 or 4 optically isolated serial ports with RS-232, RS-422, and RS-485 protocols, as well as 24 digital I/O lines, all on a single board. Optical isolation of 1000V DC or AC protects your embedded system from ground differentials or noise spikes that would damage non-isolated boards. Each port is isolated from the other ports as well as the system. Extended temperature capability (-40 to +85ºC) enables the board to operate in vehicles such as trains and buses without concern for temperature swings. These features enable Emerald-MM-Opto to provide reliable serial communications in harsh environments such as trains and buses. In addition to ruggedness, Emerald-MM-Opto offers flexibility and advanced features. Each serial port is independently configurable for protocol and IRQ settings. Eight different I/O address combinations are built in. The 16C2850 UART chips with 128-byte FIFOs support high-speed data rates at up to 460kbps without overloading the system processor. Auto-flow control enables easy RS-485 operation by automatically enabling and disabling the transmitter during data transmission, to prevent bus conflicts or excessive software overhead. Emerald-MM-Opto also offers multiple termination methods on the serial ports to support varying interface requirements. In RS-422 or RS-485 networks, termination resistors are normally installed at the endpoints of the cables to minimize reflections on the lines. The board provides jumper-selectable termination and pull-up/pull-down resistors for this purpose. The sensible jumper positioning and layout help simplify board configuration and minimize confusion. The 24 digital I/O lines are based on an 82C55 chip and feature programmable direction in 4- and 8-bit groups. All I/O lines contain user-configurable 10K Ohm pull-up resistors for convenience. This 2-in-1 combination of serial ports and digital I/O can help lower the size and cost of your embedded system by eliminating one additional board from your PC/104 stack. Diamond Systems offers appropriate mating cables for your convenience. Cable no. C-DB9M-1 provides a DB-9 male connector with standard PC serial port pinout. Each serial port requires one cable. Cable no. C-26-18 is a 26-conductor ribbon cable for the digital I/O lines.
Emerald-MM-4M 4-Port RS-232/RS-422/RS-485 PC/104 Module Our Emerald-MM PC/104 module gives you 4 serial ports operating at speeds up to 115kbps. In RS-232 mode, the full complement of standard PC serial port signals (8 signals + ground) are provided for each port and are grouped onto two 20-pin headers (2 ports per header). In RS-422 mode, Signals RX+, RX-, TX+, and TX- are provided, along with ground. In RS-485 mode, signals TX+/RX+ and TX-/RX- are provided, along with ground. A 16C554 quad serial port IC is used for the serial ports. This chip supports data transfer rates up to 115kbps and contains a 16-byte programmable FIFO buffer for each port to minimize processor overhead. Emerald-MM offers more interrupt level and I/O address options than other quad serial port modules. Therefore, integrating the board into your computer system is a simpler task. Eight different I/O address combinations and 10 different interrupt levels are available. The board is available in several models with different combinations of jumper-configurable serial protocols: EMM-XT 2 ports RS-232, 2 ports RS-232/422/485 EMM-4485-XT 4 ports RS-422/485 EMM-4M-XT 4 ports RS-232/422/485
GPIO-MM Reconfigurable 48-line Digital I/O + Counter/Timer PC/104 Module GPIO-MM is part of a family of reconfigurable digital I/O and counter / timer modules with various port and pin configurations. Each board uses identical hardware with a 200K gate Xilinx Spartan II RAM-based FPGA. The varying configurations are based on different FPGA code. The FPGA code is stored in a flash memory on the board, enabling GPIO-MM to be reprogrammed in the field with different designs, including custom designs. The GPIO-MM configuration provides 48 digital I/O lines and 10 programmable counter/timers. The counter/timer features are based on our legacy Quartz-MM board, while the 48 digital I/O lines are compatible with our legacy Garnet-MM board. This configuration combines the features of both these boards into one board to reduce your PC/104 stack size and cost. Other GPIO-MM configurations provide up to 96 digital I/O lines.
Onyx-MM Programmable Counter/Timer, Interrupt, and Digital I/O PC/104 Module Extensive software control of features is the highlight of this digital I/O module featuring 48 digital I/O lines, 3 16-bit counter/timers, and 3 independent PC bus interrupt inputs. The 48 digital I/O lines on Onyx-MM are based on 2 82C55 ICs. They can be programmed for input or output in groups of 8 lines. Direct as well as strobed (latched) I/O modes are supported, and all I/O lines are connected to 10K Ohm pull-up resistors. The 3 16-bit counter/timers are based on an 82C54 IC. They are controlled through a configuration register on Onyx-MM (in addition to the standard 82C54 configuration register). The counter inputs can be switched between external signals, the on-board 4MHz clock oscillator, or counter outputs, all under software control. By using one counters output as another counters input, you can cascade counters in software to create a 32-bit or 48-bit counter. Onyx-MM also features programmable interrupt operations. A second software-controlled register on board configures up to 3 interrupt lines on the PC bus. Interrupts can be generated by the counter/timer outputs, digital I/O lines, or an external input line. This allows you to use a counter to generate bus interrupts at a programmed periodic rate, generate hardware interrupts under software control, or generate interrupts in response to an external event.
Login / Registration
укажите почту
введите пароль
Forgot password?
By clicking «#SUBMIT_NAME»,
you agree to our Privacy Policy
Loading data...
Subscribe to newsletter
specify your contacts

By clicking «#SUBMIT_NAME»,
you agree to our Privacy Policy