5305 Spectrum Drive, Frederick, MD 21703-7362 TEL: 301-846-9222, 800-638-2048 Fax: 301-846-9116
web: www.weinschel.com email: sales@weinschel.com
181
Description
MCE / Weinschel's SmartStepTM Switch/Relay Drivers (P/N
193-8015-000) were specifically designed for controlling a
wide variety of electromechanical switches and other TTL
devices. For example this standard design contains eight
electromechanical relays for output and control.
The relays are Form C (SPDT) latching type which along
with various jumper configurations, can be used with the
8210A to control a variety of devices such as RF Switches
(+28V and latching) and other TTL compatible devices. This
card also provides an optional three-pin External Power
connector which can be used to supply power to the
device's) under control, to simplify wiring.
The Relay Driver Card provides eight electromechanical
relays for output and control. The relays are Form C (SPDT)
latching type which, along with various jumper configura-
tions, can be used with the 8210A controller interface to
control a variety of devices.
The Relay Card interfaces to the Weinschel Model 8210A
via the Device Interface Bus (J1), a 14-pin ribbon cable
which provides communications and power to the Relay
Driver Card from the Model 8210A. This card also provides
an optional three-pin External Power connector (J4) which
can be used to supply power to the device(s) under control,
to simplify wiring. This External Power is not used by the
control circuitry on the Relay Driver, and its use is com-
pletely application dependent.
Each relay (shown below) contains a number of user-con-
figurable jumpers which allow the output connections to
supply power and/or ground to the devices under control.
There are provisions for the user to install their own compo-
nents on the outputs, which may include pull-up/pull-down
resistors, filter caps, EMF suppression diodes, etc.
SmartStepTM Switch/Relay Driver
(P/N 193-8015-000)
Simplifies Device Control & Subsystem Design!
Applications
Samples 1-3 below illustrate a few of the configurations
possible with the Model 8015.
Sample 1: TTL Device Control
Sample 2: +28 V RF Switch
Sample 3: Latching RF Switch
4/30/02
5305 Spectrum Drive, Frederick, MD 21703-7362 TEL: 301-846-9222, 800-638-2048 Fax: 301-846-9116
web: www.weinschel.com email: sales@weinschel.com
182
Specifications
DRIVER INTERFACE:
Input Supply Voltage: +12 to +15 Vdc Control Signals
Control Signals: TTL/CMOS compatible
Interface Modes Access.Bus protocols
DC Characteristics:
Driver Interface (D0-D7, /I2C, /RST):
Signals (Description) Minimum Maximum
VIL (Input Low Voltage): -0.5 V 0.8 V
VIH (Input High Voltage): 2.0 V 5.25 V
Ipu (Input Pullup Current): 50 µA 400 µA
Power Supply:
VIN (Supply Voltage): 11.0 V 16.0 V
IIN (Supply Current, digital section): 25 mA
ICELL (Supply Current per relay): 15 mA
RELAY CHARACTERISTICS:
(Typical for 25°C unless otherwise noted)
Number of Relays: 8
Relay Type: SPDT (Form C), Latching
Maximum Switching Voltage: AC 125 Vac
DC 220 Vdc
Maximum Switching Capacity: AC 0.5 A @ 125 Vac
DC 2.0 A @ 30 Vdc
Minimum Switching Capacity: 10 mA @ 10 mVdc
Initial Contact Resistance: 75 mW
Contact Material: Gold-clad Silver Alloy
Expected Life:
Mechanical 108operations
Electrical 105operation @ 2A, 30 Vdc
2x105operations @ 1A, 30 Vdc
Relay Release Time: 4 msec
OPERATING TEMPERATURE: -20 to +70°C
STORAGE TEMPERATURE: 67° to +167 °F
(-55° to +75 °C)
CONNECTORS:
Device Interface Bus (DIB), J1: 14-pin 0.025" square post
header @ 0.1" centers. Mates with AMP 746285-2 or equiv-
alent.
Relay Output Connector, J2: 26-pin 0.025" square post
header @ 0.1" centers.
Expansion Connector, J3: 20-pin 0.025" square post
header @ 0.1" centers.
External Power (3-pin), J4: 3-pin 0.025" square post right
angle header @ 0.156" centers.
Accessories
SmartStep Interface: The Model 8210A SmartStep
Interface provides a flexible, low cost solution for the
operation of programmable step attenuators and other
electromechanical devices under computer control.
Designed to interface to Weinschel's new line of SmartStep
programmable attenuators, the 8210A represents a new
concept in device control applications for bench test and
subsystem designs. The 8210A provides a high-level inter-
face from various industry standard communications
interfaces, including IEEE-488 and RS232/RS422/RS485,
to the SmartStep's serial Driver Interface Bus.
SmartStep Programmable Attenuators: Weinschel offers
a wide range of programmable attenuators and other
components that can be easily interfaced with the Model
8015 and 8210A to create subsystems in minutes and
greatly simplify computer control applications. Refer to the
Model 3200T Series or and 150T Series data sheets for
more information.
NOTE: All dimensions are given in mm (inches) and are maximum, unless otherwise specified.
Physical Dimensions
4/30/02
