*The input clock rate is 10MHz for these transceivers on the Model 61000 RTR-10 Router Core Module; the
input clock rate is 5MHz for these transceivers on the Model 71000 L
ON
W
ORKS
Router.
A-2
Communications Parameters
Parameter
T P / X F - 7 8
T P / X F - 1 2 5 0
T P / F T - 1 0
T P / R S 4 8 5 -
3 9
Transceiver ID
1 (01 hex)
3 (03 hex)
4 (04 hex)
5 (05 hex)
Media
Isolated
Twisted Pair
Isolated
Twisted Pair
Free Topology
and Link Power
RS-485
Twisted Pair
Neuron Chip to Transceiver
Interface
Differential
Differential
Single-Ended
Single-Ended
Interface Bit Rate
78kbps
1.25Mbps
78kbps
39kbps
Input Clock
5/10MHz*
10MHz
5/10MHz*
5/10MHz*
Minimum Clock
Configurable;
default = 5MHz
Configurable;
default =
10MHz
Configurable;
default = 5MHz
Configurable;
default = 5MHz
Number of Priority Slots
Configurable;
default =
4 slots
Configurable;
default =
16 slots
Configurable;
default = 4 slots
Configurable;
default =
4 slots
Average Packet Size
Configurable;
default =
15 bytes
Configurable;
default =
15 bytes
Configurable;
default =
15 bytes
Configurable;
default =
15 bytes
Oscillator Accuracy
200ppm
200ppm
200ppm
200ppm
Oscillator Wakeup
0
µ
sec
0
µ
sec
0
µ
sec
0
µ
sec
Collision Detect (CD)
No
No
No
No
CD Term after Preamble
N/A
N/A
N/A
N/A
CD Through Packet End
N/A
N/A
N/A
N/A
Bit Sync Threshold
5 bits
7 bits
4 bits
4 bits
Hysteresis
2
0
N/A
N/A
Filter
1
0
N/A
N/A
Network Bit Rate
78kbps
1.25Mbps
78kbps
39kbps
Alternate Rate
N/A
N/A
N/A
N/A
Wakeup Pin Direction
N/A
N/A
N/A
N/A
XCVR Controls Preamble
N/A
N/A
N/A
N/A
General Purpose Data
N/A
N/A
N/A
N/A
Allow Node Override
N/A
N/A
N/A
N/A
Receive Start Delay
2.9 bits
14.0 bits
9.0 bits
2.0 bits
Receive End Delay
0.0 bits
0.0 bits
0.0 bits
0.0 bits
Indeterminate Time
24.0 bits
25.0 bits
24.0 bits
4.0 bits
Min. Interpacket Time
0.0 bits
0.0 bits
0.0 bits
0.0 bits
Turnaround Time
0
µ
sec
0
µ
sec
0
µ
sec
0
µ
sec
Missed Preamble
1.0 bits
4.0 bits
4.0 bits
1.0 bits
Preamble Length
N/A
N/A
N/A
N/A
Use Raw Data
No
No
No
No