RPC-UHF RADIOMETRIX [Radiometrix Ltd], RPC-UHF Datasheet - Page 13

no-image

RPC-UHF

Manufacturer Part Number
RPC-UHF
Description
Radio Packet Controller
Manufacturer
RADIOMETRIX [Radiometrix Ltd]
Datasheet
Listen Before Transmit, LBT, and Delay Before Transmit, DBT determine what collision avoidance the
RPC will take before each transmission.
Radiometrix Ltd, RPC
LBT DBT
0
0
1
1
0
1
0
1
Function
Immediate TX, no channel check
Fixed delay TX, no channel check (time slots)
This is useful for rapid polling of up to 255 units by a master station.
SLOTS is set to the units ID number, the packet size, preamble length
and change over delay must be the same for all units being polled.
see - EEPROM parameters
Immediate TX, if channel is clear
The receiver is turned on and the channel checked for preamble or data.
The RPC will only go to transmit when the channel is clear.
Random delay TX, if channel is clear
This mode is useful in random access networks where there is a high
statistical probability that more than 2 RPCs could be attempting to
transmit at the same time. The receiver is turned on and the channel is
checked for preamble or data. If the channel is clear the RPC will go to
transmit, if the channel is busy the RPC will delay by a random time
(setable by TX-BACK-OFF in EEPROM) then try again for a clear
channel.
OLLISION
VOIDANCE
page 13

Related parts for RPC-UHF