:: RS232-RS485 / 422 Converter :: |
Milestone's "RS232C to RS485/RS422 Converter" are designed for high speed data transmission
between computer system and or peripherals
over long distance under noisy conditions.
It
provides opto isolation (2500 V) against
erroneous glitches, spike suppression
and short circuit protection on each transmission
line. They provide dual line differential
per signal.
Various
models are available. All the models support
upto a distance of 1.5 Kms. All models
have LED indication for Tx, Rx and PWR
line.
The
different models available are
A. Table top type:
i) Model LD-15U:
This is a universal converter which supports
RS485 as well as RS422, 2 wire or 4 wire,
Auto or DSR (+ or -) control. This converter
supports Tx, Rx, DSR line.
Switch
setting is provided for 2 wire / 4 wire
(differential) RS485 operation (i.e. half
duplex or full duplex mode).
Also switch setting for Auto, DSR +, DSR
- control provided (for output enable on
RS485 side) It supports 32 units in multidrop
environment.
This unit has a built in opto isolator and
surge protection for individual signal.
(Normal unit works on 230V AC option available
for 10 to 40V DC voltage).
ii) Model LD-15:
This is a converter, which supports only
RS422 interface (full duplex) 4 wire on
RS422 side and is with opto isolation, surge
protection for individual signals.
B.
Plug in type:
Model LD- 15 PL : This is a plug in RS232
to RS485 converter, very small, compact
without opto isolation but wit surge protection.
This
unit is self powered using DSR or CTS signals.
External 5V required if DSR or CTS not provided.
For
selecting 2 wire or 4 wire on RS485 side
2 way selector switch is provided on the
unit.
C. Din Rail Mounted type:
Model LD-15 PN : This is an industry standard
Din rail panel mounted RS232 to RS485/RS422
converter
Provision
for 2 wire / 4 wire selection. The standard
unit works on 230V AC (option 1OV DC-40V
DC)
:: RS232C To RS485 ADDRESSABLE Converter :: |
It provides all the features of LD 15U (a
table top model) The additional features
are
*
8 bit Dip switch for selecting the required
address of the unit.
(selection for 128 address)
* Selector for working as standard RS232
to RS485 converter (without addressable)
* LED indication for Tx, Rx, PWR and indication
for unit selected.
:: SERIAL TO PARALLEL Converter :: |
It is a bidirectional converter useful to
convert serial (RS232C) to parallel (centronics)
or parallel (Centronics) to serial (RS232C)
interface with selectable Baud rate (300-19.2
K) and direction.
It
supports XON / XOFF and handshake (RTS,
CTS) protocol. Front panel switch clears
memory and initializes printer. Option for
RS485 interface.
Features:
A. Baud rate selectable
from 300-19.2 K
B. Front panel reset switch
for initializing printer.
C. LED indication for S/P
or P/S mode.
:: SERIAL CURRENT LOOP Converter :: |
It is a bidirectional converter useful to
convert RS232C to 4-20 MA current loop and
vice versa. Uses Tx and Rx only (DTR, DSR
optional). Supports all combination of current
loop i.e.
A. Active Tx - Passive Rx B. Passive Tx - Active Rx
C. Active Tx - Active Rx. D. Passive Tx -
Passive Rx
It
provides opto isolation against erroneous
glitches, spike suppression, fuse protection
& short circuit on each current loop
O/P i.e. Tx and Rx (optionally DTR, DSR)
:: USB TO SERIAL CONVERTER :: |
Milestone's "USB to Serial Converter" is a powerless compact device which converts
USB input from PC to serial output (RS232C).
:: USB TO RS485 CONVERTER :: |
Milestone's "USB to RS485 Converter"
is a powerless compact device which converts
USB input from PC to RS485 output (2 / 4
wire). Option available
for isolated 485 output |
