cbus:overview-en
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| + | ====== CAN-GCA Overview ====== | ||
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| + | =====CAN===== | ||
| + | GCA CBUS supports a small subset of the CBUS protocol.\\ | ||
| + | //CBUS protocol documents are a copyright of Mike Bolton and Gil Fuchs//\\ | ||
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| + | ===== Professional boards & kits ===== | ||
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| + | :!: //Only Kits bought from **[[http:// | ||
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| + | ===== CANBUS - A universal layout control system ===== | ||
| + | CAN-GCA module firmware is based on CAN using the industrial [[http:// | ||
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| + | ===== Example Network ===== | ||
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| + | ===== Bus termination ===== | ||
| + | [[http:// | ||
| + | The very high noise immunity is achieved by ensuring that the differential impedance of the bus is maintained at a very low level using low value resistors (120 ohms) mounted at each end of the bus. \\ | ||
| + | | On all CAN-GC boards this termination resistor is already mounted and can be activated by setting a jumper. | \\ | ||
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| + | ===== Connection cable ===== | ||
| + | The best suitable cable for connection between all CAN-GCx modules is [[http:// | ||
| + | Almost any computershop or DIY Market sells this cable for pretty low prices. (e.g. Reichelt [[http:// | ||
| + | {{ https:// | ||
| + | ^ DB9 \\ Pin ^ Function ^ CAT-5 color ^ Remark ^ | ||
| + | | **1** | GND | brown/ | ||
| + | | **6** | GND | green/ | ||
| + | | **2** | DCC-B | orange/ | ||
| + | | **7** | CANL | blue/ | ||
| + | | **3** | LN | green | LN, LocoNet, for mixed systems | | ||
| + | | **8** | CANH | blue | mandatory¹ | | ||
| + | | **4** | DCC-A | orange | ||
| + | | **9** | //Not used// | ||
| + | | **5** | +12V | brown | mandatory¹ | | ||
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| + | ¹) Minimal cable configuration.\\ | ||
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| + | Pin 2 and 4 are __only needed when ORD-3__ booster is used in the same system.\\ | ||
| + | Changing wire colours could cause errors.\\ | ||
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| + | ====Links==== | ||
| + | ===Reichelt Elektronik=== | ||
| + | * [[http:// | ||
| + | * [[http:// | ||
| + | * [[http:// | ||
| + | * [[http:// | ||
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| + | ====Alternative cable==== | ||
| + | | For testing and small layouts. |\\ | ||
| + | Standard full wired male to female **extension** RS232 cables are allowed, but up to a certain limit. (e.g.: Reichelt [[http:// | ||
| + | It is never experienced how many can be used. A few will not disturb the communication, | ||
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| + | \\ | ||