SENSORNET/MANCHESTER DISTRIBUTION PANEL
8200-0712-01, REV. E
INSTALLATION GUIDE
4 of 5
Data Communication
Specification
SensorNet
Manchester
Address Range
1 to 254
1 to 64
Bit Rate
230.4kbps
31kbps
Network Distance
1km (3300ft) per cable segment if
repeaters are used
1.5km (5000ft) per cable segment if
repeaters are not used
1.5km (5000ft)
Maximum Loads
32 per cable segment
3 per run
Cable Segment
Repeaters
SensorNet Junction boxes and
distribution panels
Distribution panels
Topologies
Daisy Chain, Backbone, or Star
Daisy Chain
Transmission
Medium
Single, non-polarized, unshielded
twisted pair UTP 22AWG (0.326mm
2
)
Single twisted pair 18AWG (0.823mm
2
)
(Belden 8760), polarized, shielded
Connector
Euro-style 3-pin removable plug
3.5mm (0.14in) terminal block, shield
not used
Euro-style 3-pin removable plug
3.5mm (0.14in) terminal block
Connector Pin
Assignments
Pin 1 .......................S+ (Orange wire)
Pin 2 ........................ S– (Yellow wire)
Pin 3 ..........Ground (Shield not used)
Pin 1 ...................................... S+ (Black wire)
Pin 2 ......................................S– (White wire)
Pin 3 ............................ Ground (Shield used)
Terminating Resistor
120
Ω
, switch selectable
120
Ω
, switch selectable
Physical Layer
RS-485, transformer-isolated, 2-wire
RS-485, transformer-isolated, 2-wire
Data Encoding
FM-0
Manchester
Link Layer Framing
SDLC/HDLC
Proprietary
Link Layer Channel
Bi-directional, half-duplex
Simplex
Collision Avoidance
Polling by primary host controller
device
N/A
Application Protocol
Proprietary
Proprietary
Host Controller
Devices
ADMPCPU, ADTT16E primary
Touch Tracker
®
, MegaPower
®
48
Plus, MegaPower LT, ADACSNET
SensorNet USB module, and previous
AD SensorNet host/controller
products
ADMPCPU, AD2091, MegaPower 48 Plus,
and previous AD SensorNet host controller
products
Secondary Devices
Domes, Distribution Panels, Junction
Boxes, Secondary Touch Tracker,
and SensorNet I/O Unit
Domes
Notes:
•
The host input ports will be used in sequence whenever the previous input port is not receiving data.
•
When used in a dual MegaPower CPU system, the HOST A port connects to one CPU, and the HOST B port
connects to the other CPU to support hot-switching capability.
