Router user’s guide 67 – Echelon LonWorks Router User Manual
Page 77

CP0
CP1
CP3
RST~
CP4
32 RX
34 TX
38
28
39
Router 5000
FTT-10A Transceiver
8
NETB
NETA
R1
10k
+3.3 V
+5 V
RXD
TXD
GND
VCC
8
5
4
1
NET_A
NET_B
2
3
GND
36
VDD3V3
Low drop-out
linear regulator
INPUT
+5 V
OUTPUT
+3.3 V
C5
0.1 µF
C4
1 µF
OE
10 MHz
18 pF
C2
30 pF
C1
33 pF
R3
200
R2
1M
XOUT
XIN
CLK
6
+5 V
23
24
GROUND GUARD
U1
U2
U3
CP2
37
T1
T2
9
7
D1
D2
C6
0.1 µF
+5 V
C9
22 µF
C8
22 µF
+
+
C7
1000 pF
D3
D4
PCB Spark Gaps
Or
Fast Surge
Protectors with
Microgap
C3
0.1 µF
+5 V
Figure 34. Connecting a Router 5000 to an FTT-10A Transceiver
Table 15. Example Bill of Materials for the FTT-10A Circuit
Designator
Value
C1
33 pF
C2
30 pF
C3, C5, C6
0.1 µF
C4
1 µF
C7
1000 pF
C8, C9
22 µF, 50 V, polar
D1, D2, D3, D4
BAV99 or 1N4148 (x2)
R1
10 kΩ
R2
1 MΩ
R3
200 Ω
L
ON
W
ORKS
Router User’s Guide
67