Specifications

DIGITAL I/O
156
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Electromechanical Relays: Ideal Companion for Digital I/O
Electromechanical relays have several advantages over solid-
state relays. They are usually less expensive; they are more flexible
because they require less current sink from the digital I/O board;
and they’re smaller, so they can be packaged to take up less space.
Relays have their drawbacks, however. They can arc or surge when
used with devices carrying an inductive load (such as motors), and
they don’t offer the same optical isolation. Important: When using
CYERB for switching inductive loads, use the newer CYDO output
only boards (pg. 151) which cannot be reset by the “inductive kick.”
Our C
YERB 08, 24, & 48 panels are built around 8, 24, or 48
mechanical relays. All of the relays are SPDT/form C, with 3 posts.
The three posts on each form C relay are: common (COM), a post
attached to a moving pole, & two switching posts, normally-open
(NO), and normally-closed (NC). The NC post is in contact with COM
at power-up, after reset, or when a “0” is written to the control bit.
The NO post is in contact with COM when a “1” is written to the
control bit. Note: “S” models include heavier-duty 10A relays which
are socketed for quick field replacement. Model CYERB 24SF has
built-in circuitry to detect and report back each relay’s actual
output status (requires a total of 48 I/O lines). Our “L” models have
lift-off screw terminal strips for fast panel swap-out without rewiring.
Digital I/O lines to the CYERB are pulled to a steady state by
circuitry on the board so they do not randomly open or close on
power-up. CYERB 08 models use +5V power (through the I/O
cable); others need +5V to be supplied (a 10-foot cable to draw +5V
from your PC’s power supply is supplied with each CYERB 24/48).
On-board buffer/drivers allow the CYERB 24 to be controlled by
any LSTTL or NMOS/CMOS device. Compensating for the lack of
current sink in such low-power devices, it makes an ideal companion
for 8255-type devices, such as the auxiliary I/O on the CYDAS 1600.
Ordering Information:
Visit cyberresearch.com for detailed information.
#CYERB 08 Panel with 8 SPDT
(
Form C
)
5A relays, 37-pin
(
ERA-01
)
...........$115
#CYERB 24 Panel w/ 24 SPDT
(
Form C
)
5A relays, 37 & 50-pin
(
ERB-24
)
.....$245
#CYERB 48 Panel w/ 48 SPDT
(
Form C
)
5A relays, 50-pin connector...........$345
#CYERB 08L CYERB 08 Panel with removable terminal strips (min. 5 pcs.)......$145
#CYERB 24L CYERB 24 Panel with removable terminal strips (min. 5 pcs.).....$325
#CYERB 48L CYERB 48 Panel with removable terminal strips (min. 5 pcs.).....$495
#CYERB 08S CYERB 08 Panel with 10A socketed relays .................................$145
#CYERB 48S CYERB 48 Panel with 10A socketed relays.................................$445
#CYERB 08SL CYERB 08S Panel with removable terminal strips (min. 5 pcs.)...$175
#CYERB 48SL CYERB 48S Panel with removable terminal strips (min. 5 pcs.)...$595
#CYERB 24SF CYERB 24, 10A socketed, output fault detection
(
50-pin/48 DIO
)
....$295
#CYERB 24SFL CYERB 24SF Panel w/removable terminal strips (min. 5 pcs.).....$375
USB versions now available — see pg. 155! See pg. 140 for 37- & 50-pin cables.
Relay Mounting Panels Interface I/O to Power
Use Opto 22 Relays with TTL-level Digital I/O Lines!
A solid-state relay requires more current to switch on than
most Intel 8255-based (TTL-level) digital I/O boards can provide.
Output buffer chips built onto our CYSSR 08 and 24 relay
mounting racks provide 16 mA of current sink per channel.
By providing the current sink on the relay panel, we’ve made it
possible to use solid-state relays with virtually any TTL-level
digital I/O board, regardless of whether or not your digital I/O
board provides a sufficiently high current sink.
The CYSSR 08 & 24 mounting racks can use standard or mini-
size Opto 22-style solid-state relays. Each of the 8 or 24 positions
can be used to mount a solid-state power control module. Mix
and match the input (sensing) and output (relay) modules in 4 or
8-module groups, just as you would when mounting them on our
standard CY PB24 panel (see p. 154 for modules; see web for panels).
Daisy-Chain for Large Point Counts
The CYSSR 08 has two 37-pin
connectors in parallel, and is wired
to port C of your DIO board. Our
CYSSR 24 has both 37-pin and
50-pin connectors for easy cabling
to most I/O boards. Use the two
50-pin connectors, “IN” and “OUT,”
to daisy-chain a second 24 panel.
+5VDC power for the rack can
be supplied by your PC’s power
supply (via the included 10-foot
cable with Molex connector #CBL
MOL10, pg. 140) or by an external
supply, such as our #MPS 05-01P.
CYERB 24
C
YERB 08
9" x 4" panel
#CBL MOL10 not required Screw Terminals for 12
~
22AWG Wire
17" x 4.5" panel
17" x 4.5" panel
DB-37 connector
plus an additional
DB-37 connector
for pass-through
(daisy-chaining)
to other accessories
CYERB 48
Use either the DB-37
or the 50-pin header
connector.
A second 50-pin
header passes the
other 24 lines of a
48-channel cable to
a second C
YERB 24.
Multiple C
YSSR 24 panels can be
daisy-chained with 50-pin #CBL 5002
50-pin header
connector interfaces
easily with 48-line,
50-pin I/O boards,
including:
C
YDIO 48, 96, & 192
& C
YDO 48, 96, & 192
CYERB Series:
8, 24, or 48 SPDT relays
rated to 28V
DC@ 6A,
120V
AC @ 5A
(
50
~
1000Hz
)
Operate Time: 20msec.
Release Time: 10msec.
CYSSR 24
C
YSSR 08
9" x 4" panel
Indicator LEDs for each relay
Screw terminals for
12
~
22 AWG wire
17" x 4.5" panel
DB-37 (37-pin)
connector
plus
additional DB-37
connector for
pass-through
Use either the
DB-37 or the 50-pin
header connector
A second 50-pin
header passes
the other 24 lines
of a C
YDIO
48-channel cable to
a second C
YSSR 24
CYSSR 08 & CYSSR 24
Mounting Rack
for use with Opto 22
and equivalent
Solid-State Relays.
+5V PC power via #CBL MOL10 (included).
Pulls +5V power from PC via #CBL MOL10
Pulls +5V power from PC via #CBL MOL10 cable (included).
CYERB 08 8 SPDT (form C) electromechanical relay panel
CYERB 24 24 SPDT (form C) electromech. relay panel
CYERB 48 48 SPDT (form C) electromechanical relay panel
CYSSR 24 Mounting Rack: holds 24 solid-state relays (Opto 22/Gordos)
CYSSR 08 Mounting Rack: Holds 8 Solid-State Relays (Opto 22/Gordos)
C
YSSR 08 & CYSSR 24
Mounting Rack
for use with Opto 22
and equivalent
Solid-State Relays.
Ordering Information:
Visit cyberresearch.com for more information.
#CYSSR 08 8-Position TTL-Level Relay Mtg. Panel, 37-pin
(
SRA-01
)
........$95
#CYSSR 24 24-Position
TTL Relay Mtg. Panel, 37 & 50-pin
(
SSIO-24
)
..$175
#CYSSR 08L CYSSR 08
w/ removable terminal strips (min. 5 pcs.)
.......$115
#CYSSR 24L CYSSR 24
w/ removable terminal strips (min. 5 pcs.).......$225
#MPS 05-01P 5V, 1A Power Supply
(
plugs into 120V outlet
)
...............$39
#CBL 3702 2-foot, 37-pin flat ribbon cable
(
page 140
)
................$25
#CBL 5002 2-foot, 50-pin flat ribbon cable
(
page 140
)
................$25
#CBL 5006 6-foot, 50-pin flat ribbon cable
(
page 140
)
................$35
USB versions – see pg. 155! Panels do not include Solid-State Power Modules (see pg. 154).
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