ADLINK ND-6520 - Manual (Page 6)

2 • Introduction
1.2 Outstanding Features of NuDAM
z Industry standard networking
All NuDAM modules use the RS-485 communication protocol for transmitting
and receiving at high rates and over long distance.
z Two-wire and multi-drop communication
A single twisted pair of wires is used to transmit and receive data between
modules. Multi-drop capability makes system configuration more flexible and
easy set-up of a network.
z High transfer speed
NuDAM modules provide up to 115.2K bps data / command transfer rate. It can
promote system bandwidth.
z Simple command / response protocol
All communications are performed with printable ASCII characters. This allows
the information to be processed with string functions common to the most
high-level languages.
z Industrial design
The screw terminal plug connectors on every NuDAM module ensures simple
installation and easy modification. The compact size allows the modules to be
mounted on DIN rail, back-panel wall-mount, etc.
z Watch-dog supervisory
NuDAM contains a watch-dog supervisory circuitry that will automatically reset
the module when the system fails. In addition, a user-programmable software
timer provides a ‘safe’ output signal in the event of host computer failure.
z High isolation voltage
NuDAM provides photo-isolators, which ensure high isolation voltage, between
the data acquisition circuits and the communication port. The fatal
electric-shock won‘t go through and damage all the modules on the network.
z Noise immunity
The NuDAM provide extra noise immunity capability. An electrode, which is
coated inside the ABS case, can reduce electro-magnetic interference (EMI)
and noise.
z Harsh environmental protection