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| Precision Digital's serial adapters
are designed to work with its line of Trident digital panel
meters. These adapters are available for RS-232 and RS-422/485
applications and can connect to the Trident via the standard
Precision Digital serial
protocol, optional
Modbus protocol or via a free
LabView driver.
One very important feature of these adapters is that they
are external devices, so one adapter can be used to program
as many Tridents from a computer as desired. Click
here to see how Trident meters can save you money!
The PDA7488 is an adapter board for serial connection of
up to 6 Trident meters. It is particularly useful for data
acquisition applications as it simplifies wiring.
Precision Digital also offers serial converters to convert
RS-232 and USB to RS-422/485. These converters are available
in both isolated and non-isolated versions and will work with
any serial device, such as Nova controllers, Fluidwell flow
computers, ConsoliDators or any other device with a serial
port.
Precision Digital provides a free software utility called
MeterView which allows the
Trident to be programmed from a computer and also collect
data.
For general information on serial communications, click
here.
For complete information on Precision Digital's serial adapters
and converters, see Serial Communication Converters &
Adapters: Instruction Manual listed at end of this page.
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PDA7232
Trident RS-232 Adapter
The PDA7232 converts the serial output of the PD765 Trident
meter to an unbalanced, full-duplex RS-232 signal. Since it
is an external device, one PDA7232 in conjunction with free
MeterView software can be used to program and calibrate an infinite
number of Trident meters |

|
Compatibility: EIA-232
Connectors: PC compatible 9-pin D subminiature connector
(DB9) and RJ11 (adapter to meter)
Distance: Adapter to PD765 meter: 7' (2.1 m) max; Adapter
to computer: 50' (15 m) max; serial interface cable not provided.
|
PDA7420
Trident Meter Copy Cable
The PDA7420 Trident meter copy cable connects two Trident meters
together so the programming from one Trident can be copied to
the other. No additional serial adapters are required. |
Cable: 7' (2.1 m) standard modular cable
provided with PDA7232 and PDA7422 adapters.
Status Indication: Separate LEDs for power (P), transmit
(TX), and receive (RX) |

|
PDA7422
Trident RS-422/485 Adapter
The PDA7422 converts the serial output of the PD765 Trident
meter to balanced, full or half-duplex RS-422 or RS-485 signals. |

|
Compatibility: EIA-422 and EIA-485
Connectors: Removable screw terminal connector and RJ11
Distance: Adapter to PD765 meter: 7' (2.1 m) max; Adapter
to computer: 3,937' (1,200 m) max |
PDA7485
RS-232 to RS-485 Converter
The PDA7485 converts unbalanced, full-duplex RS-232 signals
to balanced, full or half-duplex RS-422 or RS-485 signals. It
is available in isolated and non-isolated versions. |
Compatibility: EIA-232, EIA-422, and EIA-485
Connectors: Screw terminal connector and DB9
Distance: RS-232 connection: 50' (15 m) max; RS-422/485
connection: 3,937' (1,200 m) max
Number of Units: Up to 31 RS-485 compatible devices
Power: 9-12 VDC; 115 VAC/12 VDC adapter included
Isolation: PDA7485-I: 1500 VAC between data lines; 700
VDC input/output-to-power PDA7485-N: 1500 VAC between data lines
only |

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PDA7488
Trident RS-232 & RS-485 Isolated Multi-Input Adapter Board
The PDA7488 converts the serial output from up to six PD765
Trident meters to either an unbalanced, full-duplex RS-232 signal
or balanced, full or half duplex RS-422 or RS-485 signals (but
not for use at the same time). |

|
Compatibility: EIA-232, EIA-422, and EIA-485
Connectors: Screw terminal connector, RJ11, and DB9
Distance: Adapter board to PD765 meter: 7' (2.1 m) max;
RS-232 connection: 50' (15 m) max;
RS-422/485 connection: 3,937' (1,200 m) max
Number of Units: Up to 6 Trident PD765 meters
Mounting: Board with 4 adhesive-backed mounting feet
Power: Powered by 1 PD765 RJ11 connection
Isolation: 1500 VAC input-to-output, TX-to-RX line |
PDA8232-N
USB to RS-232 Converter
The PDA8485 converts USB to balanced, full or half-duplex
RS-232 signals. |
Compatibility: USB 1.1, Usb 2.0, Eia-232
Connectors: PC compatible 9-pin d subminiature connector
(DB9) and USB type A
Drivers: Windows® 98/2000/Me/XP
Distance: USB connection: 10 (3 m) max; RS-232
connection: 50 (15m) max
Power: USB port |

|
PDA8485
USB to RS-485 Converter
The PDA8485 converts USB to balanced, full or half-duplex RS-422
or RS-485 signals. |
 |
Compatibility: USB 1.1, USB 2.0, EIA-422, and EIA-485
Connectors: Screw terminal connector and USB Type B
Drivers: Windows 98/2000/ME/XP, Linux 2.4 & greater
Distance: USB connection: 10' (3 m) max; RS-422/485 connection:
3,937' (1,200 m) max
Number of Units: Up to 31 RS-485 compatible devices
Power: USB port
Isolation: PDA8485-I: 1500 VAC between data lines; 700
VDC input/output-to-power. PDA8485-N: 1500 VAC between
data lines only |
ORDERING
INFORMATION
| Model |
Description |
Price |
| PDA7420 |
Trident Meter Copy Cable, 7' (2.1 m) |
$9 |
| PDA7232 |
Trident RS-232 Serial Adapter |
$79 |
| PDA7422 |
Trident RS-422/485 Serial Adapter |
$79 |
| PDA7485-I |
RS-232 to RS422/485 Isolated Converter |
$169 |
| PDA7485-N |
RS-232 to RS422/485 Non-Isolated Converter |
$139 |
| PDA7488 |
Trident RS-232 & RS-485 Isolated Multi-Input
Adapter Board |
$209 |
PDA8232-N
|
USB to RS-232 Converter |
$49 |
| PDA8485-I |
USB to RS-422/485 Isolated Converter |
$189 |
| PDA8485-N |
USB to RS-422/485 Non-Isolated Converter |
$159 |
| PDA9485-01 |
Ethernet Serial Server |
$389 |
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DOCUMENTATION
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