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Industrial Port-Powered RS232 Isolator (7-wire)
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Model:
CVT-232B-3
$59.95
In stock
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Volume Discounts
Qty: 10+ $53.96
Qty: 50+
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The CVT-232B-3
is a
compact, rugged, industrial-grade,
port-powered, 7-wire RS-232 Isolator. The unit
optically isolates
seven (7) RS-232 lines (TX,
RX, RTS, CTS, DTR, DSR and GND),
which effectively protects your RS-232 devices from
ground
loops, noise problems, transient surges, remote lightning and spikes.
This
industrial 7-wire RS232 isolator
operates within a
temperature range of -40ºF to 185ºF (-40ºC to 85ºC),
and features 600W surge protection and 15kV static
protection.
The
unit is efficiently powered from the RS232 data line, it requires no
external power or software drivers, making the unit a
highly reliable and truly plug-and-play device
and an ideal solution for all types of installations.
The unit is
backed by our 30-day risk-free money-back guarantee and
5-year replacement warranty.
Baud
rates: 300 to 19.2K Baud.
See also:
3-wire RS232 Isolator (CVT-232A-3)
datasheet |  FAQs |
product selection guide
 testing
info |
 declaration
of conformity
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PRODUCT PHOTOS
(INDUSTRIAL RS232 ISOLATOR - 7 WIRE)
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Note:
We also provide custom-made product (male connector with screws and female
connector
with nuts) upon request, minimum quantity
of order:
10 units. |
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FEATURES (INDUSTRIAL RS232
ISOLATOR - 7 WIRE)
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- Optically isolates seven (7) RS-232 lines (TX, RX,
RTS, CTS, DTR, DSR and GND).
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Optical isolation effectively protects your RS-232 devices from
ground loops,
noise problems, transient surges, remote lightning and spikes.
- 300 to 19.2K Baud operation (auto-sensing & self-adjusting).
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Industrial grade with temperature range of -40ºF to 185ºF (-40ºC to 85ºC),
surge (600W) and static protection (15kV).
- No drivers needed.
- No DIP switch or jumper settings.
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Port-powered, no external power or
RTS, DTR required.
- Plug and play (hot-pluggable, data format auto-sensing &
self-adjusting).
- Built-in
surge protection, static protection and circuit
protection.
- Surface Mount Technology manufactured to RoHS and ISO-9001 standards.
- Safety: Strictly certified by TUV (Cert No. SG-CE-090012).
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5-year
manufacturer's warranty. |
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SPECIFICATIONS (INDUSTRIAL RS232 ISOLATOR -
7 WIRE)
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Part Number: |
CVT-232B-3 |
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Compatibility: |
EIA/TIA
RS-232C standard |
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Power Source: |
Port power
from RS232 data line |
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Current
Consumption: |
Less than
10mA |
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Optical
Isolation: |
2500Vrms
(AC, 1 min) |
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Baud
Rates: |
300
to 19,200bps (auto-sensing & self-adjusting) |
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Distance: |
RS-232: 16ft
(5m) |
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Connector: |
DB-9 Female
Connector and DB-9 Male Connector |
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Surge protection: |
600W |
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Static
protection (ESD): |
Up to 15KV |
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Dimensions (H
x W x D): |
0.63 x 1.3
x 2.5 in (16 x 32 x 63 mm) |
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Weight: |
0.88 oz (25
g) |
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Operating
Temperature: |
-40ºF to
185ºF (-40ºC to 85ºC) |
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Operating
Humidity: |
Up to 90%
RH (no condensation) |
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RS232 ISOLATOR CONNECTOR PINOUTS
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Female RS232 Side |
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Pin |
4 |
6 |
7 |
8 |
2 |
3 |
5 |
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Function |
DSR |
DTR |
CTS |
RTS |
TX |
RX |
GND |
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DB-9
Female (view from front) |
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Male RS232 Side |
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Pin |
4 |
6 |
7 |
8 |
2 |
3 |
5 |
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Function |
DTR |
DSR |
RTS |
CTS |
RX |
TX |
GND |
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DB-9 Male (view from front) |
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RS232 ISOLATOR CONNECTIONS
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FIGURE 1:
CVT-232B-3 CONNECTION DIAGRAM (DTE TO DCE) |
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FIGURE 2:
CVT-232B-3 CONNECTION DIAGRAM (DTE TO DTE) |
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[+]
TROUBLESHOOTING 7-WIRE RS232 OPTO-ISOLATOR
Loopback Test
- Connect the female
connector end of the isolator to your PC’s COM port and
connect the other end (male connector) to another of
your PC’s COM ports with a null-modem converter (or
connect pin 2 to 3, pin 3 to 2, pin 4 to 6, pin 6 to 4,
pin 7 to 8, pin 8 to 7, and pin 5 to 5 between the male
connector and your PC's RS232 connector).
- Run two instances
of the
232Analyzer FREE
version software on your computer.
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Select "ASCII" for both the Send and Receive data
formats. Then send command and/or string such as
"CommFront" from one COM port. You should receive an
echo of the command/string sent ("CommFront") on the
other COM port. By performing a simple loopback test
like this, you can test both the transmitter and
receiver of the isolator. This is very helpful when you
are in doubt about the performance of your isolator.
Screenshot 1: Send
commands/signals from 1st instance of the 232Analyzer
software.
Screenshot 2: Receive
commands/signals from 2nd instance of the 232Analyzer
software.
232Analyzer is an advanced RS232 Serial Protocol Analyzer
software
that allows you to control, monitor and analyze serial port
(RS232 / RS485 / RS422 / TTL, etc.) activities.
Not just the data,
it also allows you to monitor or change RS-232's line
states: RTS, CTS, DTR, DSR, DCD, and RI.
The FREE version (no time
limitation) can be downloaded from
here.
TECH NOTES
RS-232: 3 easy steps to understand and control
your RS232 devices
RS-485/RS422:
Building a reliable RS485/RS422 network |
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