The latency introduced in the link by any fiber or passive 10/100 design is equal only to that caused by actual length of the physical path through the tap. It is equivalent to adding only a few inches of fiber or copper cable to the actual link, typically less than 10ns.
The latency introduced into links by the Datacom Systems copper Gigabit capable SS-1200 and SS-2200 series taps will depend on the nature of the traffic (packet size distribution and inter-packet gap) and will range from as little as 2.0 microseconds up to a maximum of 13.8 microseconds.