LPM-IO144/96/48 MCM-IO144/96/48 144/96/48-Point I/O with STD BUS, CMOS STD BUS Interruptible Event Sense FEATURES � Available with either 144, 96 or 48 digital I/O lines � Each line is capable of: - Bidirectional operation - Input, output or output with read back - 12mA sink current � Generates an interrupt on signal change-of-state - Supports 72 event sense lines for the LPM/MCM-IO144 card, 48 event sense lines for the LPM/MCM-IO96 card, and 24 event sense lines for the LPM/MCM-IO48 card - Software selectable edge polarity for each line - Software enabled interrupt for each line - Change-of-state latched for each line � Write-protection mask register for each 8-bit port � Compatible with industry standard I/O racks � Fused +5V logic supply for I/O modules � Nearest replacement for ZT88CT72 144-point I/O card � Replaces up to three MCM-7508 cards � STD Bus and CMOS STD Bus interface � +5 volt only operation � Extended operational temperature range: -40° to +85° Celsius for the LPM-IO144/96/48 through 6 registers. A six bit Write Mask register allows the user to disable writes on a byte basis to configure the The LPM/MCM-IO144/96/48 is a very versatile group of group as a “Read Only” port. STD Bus cards providing up to 144 lines of digital I/O. Each line can be individually configured for input, out- Each I/O line is individually programmable for input, out- put or output with read back. The major feature of this put, or output with read back operation. The input lines card is its ability to monitor both rising and falling digi- are connected so the current status of its output port can tal edge transitions, latch them and then signal the host be read from the corresponding input port (read back). If processor that a change of input status has occurred. the port is used as input only, then the corresponding output port bit must be cleared. Each output channel is FUNCTIONAL CAPABILITY latched and has an open collector driver (with a pull-up resistor) capable of sinking 12mA of current. This allows Bus Interface - The MCM-IO144/96/48 is the STD Bus direct control of up to 144 opto-isolated signal condition- and the LPM-IO144/96/48 is the CMOS STD Bus version ing modules to a single card for high density I/O support. of the board. Programming, cable pin-outs, bus pin assignments, and jumper configurations are identical Event Sense Operation - Each 16C48 ASIC can support for both cards. The LPM/MCM prefix indicates the card 24 event sense lines to generate an interrupt when an has the same features and functionality but a different event occurs. This means that 72 lines on the LPM/MCM- bus interface logic, power requirements and opera- IO144, 48 lines on the LPM/MCM-IO96, or 24 lines on the tional temperature range. LPM/MCM-IO48 can sense a positive or negative transi- tion on the input. Transition polarity is programmable Configuration - The LPM/MCM-IO144 supports 144- and enabled on a bit-by-bit basis. Each lines’ transition is digital I/O signals, and the LPM/MCM-IO96 and latched by the event so that even short duration pulses LPM/MCM-IO48 support 96 and 48 respectively. The will be recognized. An interrupt ID register is maintained number of lines supported is a function of the popula- for each line for writing more efficient Interrupt Service tion option of WinSystems’ 16C48 Universal I/O con- Routines. The board can generate system interrupts troller ASIC. One 16C48 will support 48 lines with up which are routed through a jumper block to any of the to 3 ASICs per board. The 48 lines are addressed four STD Bus interrupt signals. Input: Addressing - The LPM/MCM-IO144/96/48 is I/O 10K nominal pull-up resistor mapped. The number of contiguous I/O addresses required is a function of the number of 16C48 ASICs Power Requirement onboard and whether event sense is enabled. Each Vcc = +5V, (No rack power or input/output loads) 16C48 requires either 8 ports for the standard mode or LPM-IO144 = 14mA typ.; MCM-IO144 = 90mA typ. 16 ports if the event sense mode is used. This feature LPM-IO96 = 13mA typ.; MCM-IO96 = 89mA typ. reduces the I/O ports required in a system with many LPM-IO48 = 12mA typ.; MCM-IO48 = 88mA typ. I/O cards. Mechanical For example, a MCM-IO48 card without event sense Dimensions: 4.5” x 6.5” requires 8 ports while a MCM-IO144 with event sense enabled will require 48 contiguous ports. Connectors STD Bus: 56-pin dual 0.125 inch centers I/O Connectors - The signals are wired to a 50-pin con- Digital I/O: J1 - J6, 50-pin dual 0.100” grid nector. The 24 data lines are alternated with 24 ground Jumpers: 0.025” square posts lines for reduced noise and crosstalk. Also each con- nector has 1A fused +5 volts and ground for logic Environmental power for I/O modules. The pinout is compatible with Operating Temperature: the industry standard 4 to 24 position I/O module LPM-IO144/96/48: -40° to +85°Celsius mounting racks (Opto-22, Crydom, Gordos, etc.) for MCM-IO144/96/48: 0 to +65° Celsius use with high level AC and DC opto-isolated solid state Non-condensing relative humidity: 5% to 95% relays. ORDERING INFORMATION Second Source - The LPM-IO144 replaces the Ziatech ZT88CT72. The LPM-IO96 replaces the Ziatech MCM-IO144 144-line STD Bus I/O card ZT89CT61. MCM-IO96 96-line STD Bus I/O card MCM-IO48 48-line STD Bus I/O card SPECIFICATIONS LPM-IO144 144-line CMOS STD Bus I/O card LPM-IO96 96-line CMOS STD Bus I/O card Electrical LPM-IO48 48-line CMOS STD Bus I/O card STD Bus (MCM) and CMOS STD Bus (LPM) CBL-115-4 4 ft. ribbon to Opto module racks CBL-129-4 4 ft. ribbon cable, 50-pin both ends Output: I = -4mA at 3 volts OH I = 12mA at 0.6 volts OL 715 Stadium Drive • Arlington, Texas 76011 • (817) 274-7553 • http://www.winsystems.com