C&H Technologies HF4x8 User Manual

Hf4x8 switching module, Applications, Specifications

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C&H Technologies, Inc. • 445 Round Rock West Drive • Round Rock, TX 78681-5012

(512) 733-2621 • FAX (512) 733-2629 • www.chtech.com

Configuration:
True 4x8 matrix with 4 highways
also switched to P2.

Relay Contacts:
Max. Current, Resistive Load

0.25A

Max. Voltage

DC Resistive Load

50 V

AC Resistive Load

120 V

Max. VA, Resistive Load

4 VA

Typical Operating Time

(including bounce)

1 ms

Max. Contact Resistance

Initial

0.2

End of Life

1.0

Ordering Information

Part Number:

11026000-0001

Description: HF 4x8 Switching Mod.

Application Notes:

11026005-0001

VMEbus Compliance

Complies with ANSI/IEEE Std 1014-
1987

A32/A24/A16:D16 DTB Slave

No SYSFAIL

No Interrupts

IACKIN tied to IACKOUT

BRX tied to BGX

Form Factor: Size B

Applications

• Switching matrix for ATE

• Signal switching for data

acquisition

• Signal switching for simulation

• Systems signal control in a lab or

development environment

Specifications:

Characteristic Impedance:

50

Bandwidth:

100 Mhz

Isolation:

>40 db @ 100 Mhz

>60 db @ 10 Mhz

Insertion Loss: <1.0 db @ 100 Mhz

<0.2 db @ 10 Mhz

Signal Connections:

BNC

Power:

+5V @ 1.2 A typical

+12V @ 0.12 A typical

Relay Live Expectancy:
Rated Load Operation

>3x10

6

Dry Circuit Operations

>1x10

8

BITE:
Read-back capability of all relay
driver states provides system check
of entire board except for relay
contacts.

HF4x8
Switching Module

The HF4x8 is a VMEbus compatible
100 Mhz switching matrix with
c o m p r e h e n s i v e

B u i l t - i n - T e s t

Equipment (BITE) capabilities.
Modules may be joined in tree
fashion via the top edge BNC
connectors to create 8x8, 8x16,
4x16, or 4x32 configurations (4
s i g n a l

h i g h w a y s

m a x i m u m ) ,

maintaining the 100 Mhz bandwidth.
Modules may be connected via the
P2 connector to create 8x16, 8x24,
8x32, 8x40, etc. configurations (4
signal highways maximum at P2
with stub disconnect relays), with
some decrease in bandwidth. See
Application Notes for details.

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