Hytec Electronics Ltd.

VTB 8202 64-channel Analogue I/O Transition Board

VME64 extensions / Transition Board

Full EMC shielding and insertion/extraction handles

RP0 and RP2 connections

Handles 64 analogue signals, four external triggers and four external clocks.

Four DC-DC converter sites allow isolated analogue output circuits to be powered externally

Four 50-way SCSI-2 sockets provide ease of connection to four groups of circuitry each with 16 I/Os, input trigger and clock.

Product Description

The VTB 8202 is a 6U (double height) VME rear I/O transition board, which provides connection to the 8002 Carrier Board. It routes the signals from the carrier board to four 50-way SCSI sockets via the J0 and J2 connectors of the VME backplane. The board includes sites for fitting resistors and capacitors associated with each output.Optional on-board 5V to 12V DC-DC converters are connected to pins on the RP0/RP2 connectors to facilitate powering the plant side of isolated analogue circuits on IP boards which are mounted on the carrier board.

Construction

The unit is constructed to the VME64x standard, with EMC rear panel, injector/ejector handles, guide pin and slot keying, static discharge protection, hot swap capability, 5-row RP0 and RP2 connectors.

Signal Path

A rear-mounted transition card with four high-density 50-way [SCSI2] connectors transmits/receives all I/O signals and provides direct or conditioned connection provided by pcb jumper settings on the lower 8 signal pairs of each connector allow filtering of analogue inputs to an 8401 ADC IP. The signals connect to the main carrier board according to the VME64x Greenspring pinout for IP module carriers .

SCSI Connectors

Connector 1 (lowest connector)	Input/Outputs 1-16(+/-), Trigger 1(+/-), Clock1(+/-)
Connector 2	Input/Outputs 17-32(+/-),Trigger 2(+/-), Clock2(+/-)
Connector 3	Input/Outputs 33-48(+/-),Trigger3(+/-),Clock3(+/-)
Connector 4 (top connector)	Input/Outputs 49-64(+/-),Trigger4(+/-),Clock4(+/-)

Connection Details

Signal	VME Connection	SCSI Connection
Signal High 1-16	RP2/A6-A21	Skt1/26-41
Signal Rtn 1-16	RP2/C6-C21	Skt1/1-16
XTrig1 High	RP2/A23	Skt1/43
XTrig1 Low	RP2/C23	Skt1/18
XClk1 High	RP2/A25	Skt1/45
XClk1 Low	RP2/C25	Skt1/20
AGnd		Skt1/24, 25, 49, 50

Signal High 17-32	RP2/D4, D5, Z7, D8, D9, Z11, D12, D13, Z15, D16, D17, Z19, D20, D21, Z23, D24	Skt2/26-41
Signal Rtn 17-32	RP2/Z5, D6, D7, Z9, D10, D11, Z13, D14, D15, Z17, D18, D19, Z21, D22, D23, Z25	Skt2/1-16
XTrig2 High	RP2/Z27	Skt2/43
XTrig2 Low	RP2/D27	Skt2/18
XClk2 High	RP2/D29	Skt2/45
XClk2 Low	RP2/D30	Skt2/20
AGnd		Skt2/24, 25, 49, 50

Signal High 33-48	RP0/A11, C11, E11, B12, D12, A13, C13, E13, B14, D14, A15, C15, E15, B16, D16, A17	Skt3/26-41
Signal Low 33-48	RP0/B11, D11, A12, C12, E12, B13, D13, A14, C14, E14, B15, D16, A16, C16, E16, B17	Skt3/1-16
XTrig3 High	RP0/E17	Skt3/43
XTrig3 Low	RP0/A18	Skt3/18
XClk3 High	RP0/D18	Skt3/45
XClk3 Low	RP0/E18	Skt3/20
AGnd		Skt3/24, 25, 49, 50

Signal High 49-64	RP0/A1, C1, E1, B2, D2, A3, C3, E3, B4, D4, A5, C5, E5, B6, D6, A7	Skt4/26-41
Signal Low 49-64	RP0/B1, D1, A2, C2, E2, B3, D3, A4, C4, E4, B5, D5, A6, C6, E6, B7	Skt4/1-16
XTrig4 High	RP0/E7	Skt4/43
XTrig4 Low	RP0/A8	Skt4/18
XClk4 High	RP0/D8	Skt4/45
XClk4 Low	RP0/E8	Skt4/20
AGnd		Skt4/24, 25, 49, 50

HYTEC

HYTEC Head Post : 5 Cradock Road, Reading, Berkshire, RG2 0JT, England.
Phone : +44 (0)118 9757770
Fax : +44 (0)118 9757566

Email : sales@hytec-electronics.co.uk

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Last modified: May 02, 2007