Specifications; Surge Protection - American Dynamics ADACSNET Installation Manual

Specifications

USB Specifications
Bit rate .............................. 1.5Mb/s Low Speed, 12Mb/s
Maximum cable length...... 3m (9.8ft) for 1.5Mb/s,
Specification ..................... Universal Serial Bus USB
Connector ......................... USB Type B receptacle
Power source.................... From USB host controller port
SensorNet Specifications
Address range .................. 1 to 254 (configurable)
Bit rate .............................. 230.4Kbps
Network distance .............. 1km per node
Maximum loads................. 32 per node
Node repeaters ................. SensorNet junction boxes
Topologies supported ....... Daisy chain, Backbone, or
Transmission medium....... Single non-polarized
Connector ......................... Euro-style 2 pin removable
Terminating resistor .......... 120 ohms, switch selectable
Physical layer ................... RS-485, transformer isolated,
Data encoding .................. FM-0
Link layer framing ............. SDLC/HDLC
Link layer channel............. Bi-directional, half duplex
Collision avoidance........... Polling by USB Module
Application protocol .......... Proprietary
Network nodes.................. Domes, junction boxes,
Power
Input voltage ..................... 5.0Vdc ±5%, 0.75W
Internal voltage
(CPU + Misc. Support)...... 3.3Vdc ±5%
ADACSNET USB CONTROL MODULE
INSTALLATION GUIDE
Full Speed
5m (16.4ft) for 12Mb/s
Specification Revision 1.1
(power adaptor not required)
Star
unshielded twisted pair UTP
22AWG
plug 3.5mm terminal block
2-wire
secondary TouchTracker™,
and SensorNet I/O unit

Surge Protection

SensorNet:
Gas discharge tube impulse rated at:
DC breakdown voltage....................................... 90V
Insulation resistance ..................10,000 Mega ohms
Capacitance ...............................................2pF max.
8/20µs impulse
discharge current ............................................. 10kA
Ten 8/20µs impulses
discharge current ............................................... 5kA
Isolation transformer coupled ...................... 2000Vrms
PTC re-settable fuse protects transformer
Transient voltage suppressors (TVS):
Break down voltage ................................... 7.6–9.3V
Peak current....................................................... 40A
Capacitance .....................................2000pf @ 1kHz
USB: ESD suppressors protect USB lines by
suppressing fast rising transients as specified in IEC
61000-4-2 and MIL-STD-883C (8kV discharge method).
Environmental
Operating Temperature:......... 10° to 50°C (14° to 122°F)
Relative Humidity: ....................0 to 95% non-condensing
Mechanical
Length .......................................................... 10.2cm (4in)
Width.............................................................. 7cm (2.8in)
Thickness ...................................................... 2.5cm (1in)
Weight...................................................... 0.5kg (1.1 lbs)
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8200-0310-01, REV. B