DCC Monitor

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STD DCC Monitor

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Update time： 2020-07-21 12:18:31

Creation time： 2020-07-19 16:08:14

Description

Monitor for the DCC and RS-bus. For a detailed description, see: https://sites.google.com/site/dcctrains/dcc-rs-bus-monitor Two DCC signals can be monitored; the first is used for monitoring the DCC track signals (train speed and lights) while the second is focussing on DCC switch commands. Experience showd the RS-bus monitoring is difficult (unless some resistors are put within the RS-bus), so a better approach is to directly connect to the Lenz LAN/USB Interface.

Design Drawing

schematic diagram

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ATMEGA
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Power and IO
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PCB

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DCCMon
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	ATMEGA162(DIL40)	IC1,IC2,IC3	DIL40	3
2	18pF	C1,C2,C3,C4,C5,C6	C2.5-2	6
3	11.0592	Q1,Q2,Q3	QS	3
4	100nF	C7,C8,C9,C10,C11,C14,C15,C18,C19	C025-025X050	9
5	JP2E	JTAG1A,JTAG2A,JTAG3A	JP2	3
6	JP1E	JTAG1B,JTAG2B,JTAG3B,JP1,JP2	JP1	5
7	AVR2-PC2	ACCESSORY-ONLY	SJW	1
8	AVR2-PC0	ACCESSORY-ONLY1	SJW	1
9	6N136	OK1,OK2,OK3,OK4	DIL08	4
10	1N4148DO35-7	D1,D2	DO35-7	2
11	1K5	R1,R2,R4,R5,R16,R17	0207/10	6
12	MOUNT-HOLE3.5	H1,H2,H3,H4	3,5	4
13	MOUNT-HOLE3.0	H5,H6,H7,H8	3,0	4
14	DCC1	X1	STL(Z)-950-2-H	1
15	DCC2	X2	STL(Z)-950-2-H	1
16	330uH	L1,L2	BOURNS-SRR	2
17	LM2595T	IC4	T05D	1
18	220uF/35V	C12	PANASONIC_F	1
19	100uF/16V	C13	PANASONIC_D	1
20	1N5822	D3	DO201AD	1
21	B80C1000	B1	RB1A	1
22	1M5	R3,R6	0207/10	2
23	10K	R7,R8,R13,R14,R20,R21	0207/10	6
24	56K	R9	0207/10	1
25	33K	R10	0207/10	1
26	22K	R11	0207/10	1
27	68K	R12	0207/10	1
28	25K	R15	RTRIM3339P	1
29	RECOM RO-3.312S	DC1	4SIL	1
30	BC560	T1,T2	TO92	2
31	2K2	R18,R19	0207/10	2
32	Power	X3	STL(Z)-950-2-H	1
33	LM393N	IC5	DIL08-ROUND	1
34	RS	X4	STL-1550-2-H	1
35	87758-1216	X6	87758-1216	1