Specifications and Operating Instructions
The Model MN-1 Mini-Node Communication Signal
Converter
is a low cost device that converts half duplex RS
485 serial communications signals into a signal that can be
read by any computer with a USB port. The integral USB
connector and RJ-45 connector reduces set up time by
eliminating extra wiring. The Model MN-1 is powered via the
USB connection which eliminates the need for an external
power source. The compact size is great for field
installation, control panels, and lab testing.
Bulletin E-90-MN-1
Model MN-1 Mini-Node Communication Signal Converter
LOVE CONTROLS
DIVISION
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000
www.love-controls.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057
e-mail: [email protected]
57/64
[22.5]
3-5/32
[80.0]
53/64
[21.2]
YELLOW LED
GREEN LED
PIN
Signal Name
1
Reserved
2
Reserved
3
Reserved
4
SG+
5
SG-
6
Reserved
7
Reserved
8
Reserved
SPECIFICATIONS
Power Requirements:
No external power required.
Power Consumption:
0.4 W.
Isolated Voltage:
3000 VDC.
Input Impedance:
96 k
Ω
.
USB Connector:
A-Type (plug).
RS-485 Connector:
RJ-45.
Baud Rate:
75, 150, 300, 600, 1200, 2400, 4800, 9600,
19200, 38400, 57600, and 115200 bps.
Compatibility:
Full compliance with USB V.2.0
specification.
RJ-45 PIN
APPLICATION
E-90-MN-1 9/27/07 12:29 PM Page 1
