Model: ECD485nc
Distance:
Self-Powered RS-232 to RS-485
Converter
up to 4000 feet
(1200m) on CAT
5 solid cable
Mechanical/Environment
Operating Range:
(Ambient Temperature)
Storage Range:
Relative Humidity:
Comm Ports:
The ECD485nc provides excellent
versatility in a compact package. Requiring
no AC power or batteries for operation, the
converter supports asynchronous RS-232
data rate up to 115200 bps over one
unconditioned twisted pair in half duplex
mode.
Case Material:
Weight:
-40C to 65C
-40C to +100C
10 to 90% RH,
non-condensing
9-pin,
male/female,
gold pins rated
500 cycles
Plastic
approx 20g
Block Diagram:
The unit is equipped with female DB9
connector for RS-232 and male DB9
connector for RS-485. You can choose
either a terminal block or an RJ-45 socket
adapter for the twisted pair connection.
Installation
Specifications
Transmission Mode:
Signal Type:
Data Rate:
Power Requirement:
Character Setting:
Dimensions:
ECD485nc-DS
Asynchronous,
half duplex
2-wire
RS-232 (C to
F)/RS-485
Up to 115200bps
Non-powered,
Port-powered
from RS-232
Transparent, no
configuration
required
63L x 33W x
17H (mm)
Connection to the RS-232 Interface
The RS-232 interface is factory configured
as DCE. It connects directly to DTE such as
a terminal or PC. If you must use a cable to
connect the DCE to your DTE device, use a
straight through cable no longer than 50
feet (15.2m or 2500pF per wire). For your
convenience, the converter comes with a
female DB9 connector on the RS-232 side.
Connection to the RS-485 Interface
To function properly, the converter must
have one twisted pair of metallic wire. This
1 of 1
pair must be unconditioned metallic wire,
solid conductor, unshielded twisted pair,
between 19 and 26 AWG (the higher
numbered gauges may limit distance
somewhat).
For your convenience, the converter comes
with DB9 male connector (factory default
configuration), RJ-45 and terminal block
(using extension adapter) on the RS-485
side.
Specifications subject to change without
notice.
Note: To communicate properly at the RS-485
side, we strongly recommend connect the ground
together as the signal current loop.
DB9 Male Connector configuration
(RS-485)
Terminal Block configuration (RS-485)
Order Information:
ECD485nc
Non-powered RS-232 to
RS-485 Converter
Mechanical Dimensions: mm (inches)
ECD485nc-DS
2 of 2
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