Interfaces - PPS in should be 5V TTL compatible, PPS out also TTL, always 50 ohms
Submitted comment: PPS in should be 5V TTL compatible. Most 1 PPS sources are TTL out. No selectable termination, always 50 ohms!
Submitted comment: PPS in should be 5V TTL compatible. Most 1 PPS sources are TTL out. No selectable termination, always 50 ohms!