TRICONEX 3429 Servo signal card

The AM26LS33A differential receivers used on the VMIVME-2540 are capable of accepting inputs that vary greatly on voltage and time domain. Care must be taken to ensure that the input voltages are stable around VTTL when in single-ended mode or spurious data will be produced. Similarly, when using differential inputs, care must be taken to ensure that the inputs, are not allowed to float with voltage values within 100 mV of each other or data transitions may be generated.

A32/D32 DTB Slave Base address selectable on 64 Kbyte boundaries Supervisory/Nonprivileged Address Modifier Codes Dual Interrupter Modules assert any of IRQ1 to IRQ7 Board size 160 x 233.4 mm

INTERFACE: DISCRETE WIRE CONNECTORS AND TERMINAL BLOCKS 

The VMIVME-2540 has a large amount of front panel I/O which must be broken out by cabling and possibly rack-mounted terminal blocks. If the user wishes to use discrete wire connectors and cables, the suggested manufacturer is Harting Elektronik, Inc., 2155 Stonington Ave., Suite 212, P.O. Box 95710, Hoffman Estates, Illinois 60195-0710, (312) 519-7700. The recommended connector components for cabling to P3 and P4 are given in the table below.

The RS-422 differential signals 

should be connected by twisted pair insulated wires, 24 AWG solid or stranded-copper conductors (R < 30 Ω/ 1,000 ft for other conductors), with a maximum cable length of 4,000 feet. Care should be taken to ensure that each signal group is properly grounded for reliable operation. TTL signals may be connected by flat 96-conductor ribbon cable, 30 AWG insulated copper-stranded conductor. The corresponding female 96-pin DIN connector for flat-ribbon cable is ERNI 913.031 or similar. It is recommended that the total cable length be 50 feet or less for the TTL application with attention given to maximum signal transition rate and signal degradation over distance. RS-422 differential interface is clearly superior for longer cable lengths.

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