New thread started for the continuation of relay talk from another control forum (to keep the hijack police at bay)
Stan here is what i can answer for you,
1. What voltage is your 8-channel module (5V, 12V, etc.)? 12vdc
2. Is it "hi" or "low" level triggered? Or what is the eBay listing #. Ebay Item
3. These modules do not have any timing or delay to demote or mask intermittent axle contact (relay chatter) when the first few axles enter the block or when the last few axles exit the block. Is this feature of interest - which would add, say, 25 cents per channel and assembling a few components (capacitor, etc.). Yes this feature is a interest, i think i can take care of relay chatter, but i wont be apposed if your going to draw something up to include them in the drawing.