GCA127 Interface for indication with 8/16 Leds
Description
Like the MGV128 switch interface, this unit is made to have a lot of Leds on a switch-board, without many cables.
Each combination of 2 Leds (i.e. red and green) is connected to one output of the GCA50.
Possible uses: * 8 turnout positions each with red and green led. * 8 auxilary function indicators.
Also combination of these two suggestions is possible.
Simply one connector runs to MGV50.
This way of signalling will prove very wire-friendly when a few of them are installes in a switch-board.
Originally set-up as a testboard for new assembled MGV50 units, it proofs to have a much more extended way of use.
The prototype
 | The GCA50 ready for testing with GCA127 and GCA128 |
The hardware
Bill of materials
| Quantity | Reference | Part | supplier |
| 16 | R1 .. R16 | 330E | |
| 8 | Lgn1..Lgn8 | Led 3mm green | |
| 8 | Lrd1..Lrd8 | Led 3mm red | |
| 1 | J1..J4 | PSS 254/10G | www.reichelt.de |
possible options
* For each groupe of green and red led, a choice can be made to use either red only or green only or both. Other coulour leds are also possible.
* Connector J1 can be replaced by PSS254/10W, This connector lies flat on the circuit board to allow switchboard mounting.
Cable to GCA50
refer to: GCA50 connections
