onto typical lines. Under worst case conditions, the minimum V
A
supply voltage may be
relaxed
if
the following additional condition is met. With worst case power supply
loading (including PLT-22 I
A
= 250mA), worst case component tolerances, worst case line
voltage, and worst case temperature, V
A
must remain greater than or equal to 9.0V.
This condition ensures adequate transmit amplifier headroom when driving low
impedance power lines.
When using an energy storage type power supply refer to Chapter 5 for additional timing
requirements on the above conditions.
50%
60%
70%
80%
90%
40%
100%
30%
20%
10%
85
80
75
70
65
60
55
50
45
40
30
35
25
VA Max =12.6V
VA Max =16V
Transmit Duty Cycle
Maximum Operating Temperature (°C)
Maximum possible transmit duty cycle
using LONMARK interoperable
transceiver parameters and messages
Š34 bytes
Figure 2.2
PLT-22 Transceiver Maximum Operating Temperature vs. Transmit Duty Cycle
L
ON
W
ORKS
PLT-22 Transceiver User’s Guide
2-5
Summary of Contents for LONWORKS PLT-22
Page 6: ...iv Echelon...
Page 14: ...1 8 Introduction...
Page 67: ...LONWORKS PLT 22 Transceiver s User Guide 5 7 Figure 5 3 Capacitor Input Power Supply Schematic...
Page 92: ...6 10 Design and Test for Electromagnetic Compatibility...
Page 110: ...7 18 Communication Performance Verification...
Page 114: ...8 4 References...
Page 118: ...A 4 Appendix A...
