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projects:electronics:openhr20

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openhr20

Connection variant 1

Advantage: Power is fed via Ethernet cable. Disadvantage: Occupies Ethernet cable.

[HR20] <--- Ethernet cable ---> [Converter module]

Converter module supplies both power and serial. If two HR20s should be controlled, then the same Ethernet cable can be used. Four wires per module suffice (Gnd, +3.3v, Tx (TTL), Rx (TTL) ).
HR20a:
Power(Gnd) - Rx: T568A/B White/Blue (4) -  Blue (5) cable pair
Power(+3.3) - TX: T568B White/Orange (1) - Orange (2) cable pair

HR20b:
Power(Gnd) - Rx: T568A/B White/Brown (7) -  Brown (8) cable pair
Power(+3.3) - TX: T568B White/Green (3) - Green (6) cable pair

Connection variant 2

Advantage: Power is fed via PoE Module. Can be routed further if a PoE Router is being used. HR20 with PoE PD module integrated

Connection variant 3

HR20 without PoE PD module. Power for the HR20 and Ethernet/wifi to RS232 converter is fed via a separate power supply.

projects/electronics/openhr20.1452176403.txt.gz · Last modified: 2016/01/07 15:20 by admin