gca85-en
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+ | ======GCA85 LocoBuffer with 15V 3A Power supply====== | ||
+ | [[english|{{ | ||
+ | [[english|Content]] -> [[hardware-en|Hardware]] -> [[hardware-en# | ||
+ | * [[mgv-overview-en|The GCA modules]] | ||
+ | |||
+ | \\ | ||
+ | |||
+ | ^^^^By Peter Giling ^^^^ | ||
+ | |||
+ | |||
+ | |||
+ | ===== The assembled board ===== | ||
+ | |||
+ | |||
+ | {{: | ||
+ | =====Description===== | ||
+ | |||
+ | GCA85 is mostly an exact copy of the LocoBuffer (Without USB) of John Jabour.\\ | ||
+ | It is added to provide an easy way to connect GCA50 units together, and also provides a 15 Volt 3 Amp power supply for the LocoIO.\\ | ||
+ | |||
+ | \\ | ||
+ | |||
+ | ====IMPORTANT NOTES==== | ||
+ | Always use dedicated transformer for GCA85 (16V-18V mimimum 50 VA), which is not used for anything else. \\ | ||
+ | Also do NOT connect brown connection (like on Marklin transformers) to any connection of GCA85 or anywhere else in the Loconet(r)!\\ | ||
+ | Connecting so could cause serious damage to Loco-I/O modules and PC!\\ | ||
+ | This of course unless some connections are specifically indicated.\\ | ||
+ | Copying and building this unit is very much encouraged. \\ | ||
+ | The responsibility of doing so, is ALWAYS totally for the user himself.\\ | ||
+ | It is working satisfying on many railroad tracks.\\ | ||
+ | I have given all efforts to make this unit safe, but even so, no responsibility can be taken for failures of any kind.\\ | ||
+ | |||
+ | ===== Port settings ===== | ||
+ | ^ Baudrate | ||
+ | | Handshake | RTS/ | ||
+ | | Data bits | 8 | | ||
+ | | Stop bits | 1 | | ||
+ | | Parity | ||
+ | \\ | ||
+ | **Remark**\\ | ||
+ | Baudrate is selectable with on-board dip-switch 2. | ||
+ | \\ | ||
+ | |||
+ | ===== Supply Power ===== | ||
+ | |||
+ | GCA85 needs 14-18 V ac or 16-20 V dc 50 VA.\\ | ||
+ | The best option is a dedicated transformer / DC supply of minimal 50 VA, for full function.\\ | ||
+ | Less power is possible, but be sure to adapt Fuse F1 to that situation.\\ | ||
+ | Any questions, | ||
+ | Power input connections are made to terminal J1, polarity not important.\\ | ||
+ | |||
+ | ===== Connections ===== | ||
+ | ^ Connector | ||
+ | | J1 | Power 14-18V ac / 16-20V dc 50 VA | | ||
+ | | J2 | Loco-I/ | ||
+ | | J3 | Loco-I/ | ||
+ | | J4 | RJ12 Loco-I/ | ||
+ | | J5 | RS232 | | ||
+ | |||
+ | ===== DIP Switch settings ===== | ||
+ | ^ Dip switch # ^ Function ON ^ Function OFF ^ | ||
+ | | 1 | 15mA current source to LocoNet signal line \\ **N.B. | ||
+ | | 2 | 57600 Bd | 19200 Bd | | ||
+ | | 3 | MS100 mode | Loco-I/O mode | | ||
+ | |||
+ | \\ | ||
+ | |||
+ | ===== Current source, what is that? ===== | ||
+ | Click __**[[LNet_current_source-en|here]]**__ for a brief explanation about it. | ||
+ | \\ | ||
+ | |||
+ | ===== Led functions ===== | ||
+ | ^ Led ^ ON ^ OFF ^ Flashing | ||
+ | | 1 | Power on | Power off | | ||
+ | | 2 | LocoNet fault | LocoNet OK | LocoNet communicating | ||
+ | |||
+ | ===== Connection cable for Loco-I/O* ===== | ||
+ | ** The best suitable cable is Cat 5 Ethernet cable.\\ | ||
+ | For all cables together | ||
+ | | ||
+ | Standard full wired male to female ' | ||
+ | It is never experienced how many can be used, but a few do not disturb the communication. \\ | ||
+ | Please remind that this type of cable is not able to handle the full 3A of the power supply!\\ | ||
+ | |||
+ | ===== Connection cable for RS232 to PC.===== | ||
+ | |||
+ | Any full wired standard male/female ' | ||
+ | J3 (computer COM connector) could be replaced by direct USB connector.\\ | ||
+ | Ask [[peter.giling@rocrail.net|Peter]] for info.\\ | ||
+ | |||
+ | |||
+ | |||
+ | =====Files===== | ||
+ | |{{: | ||
+ | |{{: | ||
+ | |{{: | ||
+ | |{{: | ||
+ | |{{: | ||
+ | ^ N.B. ONly complete ordered kits will be supported! ^ | ||
+ | |||
+ | ===== Previous version MGV85===== | ||
+ | Schematic and partslist of previous version MGV85 V1.2: | ||
+ | |||
+ | |{{: | ||
+ | |{{: | ||
+ | ^ N.B. ONly complete ordered kits will be supported! ^ | ||
+ | |||
+ | ==== Jumper settings MGV85 ==== | ||
+ | **J1** | ||
+ | **J6** Set always for use with GCAxx or MGVxxx LocIo booards. Should be removed when Intellibox is connected to J4\\ | ||
+ |