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Important Product Information 9
GFK-1490C
Intermittent SNTP Loss Of Synchronization
Under moderately heavy EGD traffic load, the Ethernet Interface may occasionally lose synchronization with its SNTP
time server and generate exception log event 29, entry 2=bH.
Timing Issue With ALG220/221 Modules May Result in Incorrect %AI Values Read by CPU
A problem was found with the IC693ALG220/221 where the actual %AI values reported by the card may exhibit erratic
behavior (catalog module revisions F and earlier may show this problem; revision G has fixed this problem). Certain
current or voltage levels within the input range applied to the card could cause the %AI values to report incorrectly.
The problem stems from the use of particular optocouplers, which may exhibit timing issues with these CPU35x/36x
modules.
CPUs 341, 331, 321, 313, and 311 have not exhibited this timing problem reading %AI values.