XNET8100 Ver la hoja de datos (PDF) - rfsolutions.ltd
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XNET8100 Datasheet PDF : 4 Pages
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DIN RAIL TELEMETRY SYSTEM
XNET 8100
SPECIFICATION
ABSOLUTE MAXIMUM RATINGS
Storage Temperature........................................ -30 to +85 Celsius
Operating Temperature .................................... -10 to +55 Celsius
Power Supply Voltage ..................................... +/- 35Vdc
Digital Inputs..................................................... +35Vdc to –5V
Analogue Inputs................................................ +35V to –5V
External Regulated Power Source .................... +100mA
DIMENSIONS
Length = 160mm Width = 80mm
Height = 55mm
ELECTRICAL
CHARACTERISTICS
Frequency Range
Channel Separation
Modulation
RF Power
Digital Inputs
Analogue Inputs
Volt Free Contacts
Analogue Outputs
Power Supply Voltage
Transmit Current
Receiver Current
Standby Current
MIN
130
400
860
12.5
5
7
0
0
0
0.5
14
110
80
410
150
2
TYPICAL
GMSK
500
20
5
J, K
20
5
90
420
160
3
MAX
180
500
960
25.0
500
30
20
10
30
125
20
10
30
240
120
440
180
4
DIMENSION
MHz
MHz
MHz
KHz
NOTE
VHF
UHF
UHF
mW
V
mA
Current I/P
V
Voltage I/P
Thermocouple
Vdc
At 1A
Vac
At 0.5A
mA
V
12 bit resolution
Vdc
DC PSU
Vac
AC PSU
mA
10mW ERP
mA
500mW ERP
mA
mA
XNET OPERATION
XNET control modules communicate with each other by means of time division multiplexing. All control
modules in the network are set by the user to the same RF frequency and then programmed with consecutive
node addresses. These are then used as time slots. The control module with time slot zero will start the
sequence by transmitting the status of its inputs with the addresses of the destination digital outputs. After
receiving data from the first Node a timing pulse will be sent from Node 0 to request data from the next Node.
When there is a time break of 6 time slots, the control module with time slot zero will start the sequence again.
The network can be easily expanded by adding control modules programmed with the next node address in
the sequence.
XNET control modules can be configured as repeaters thereby extending the range of a network over
geological obstacles.
DS8100_1 Oct ‘01
©2001 Reg. No. 227 4001, ENGLAND
Page 2
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