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Though the recently released V1.11 firmware for ACU16-C and NHB32-C supports the low latency modes of CobraNet, it may be the case that these low latency modes cannot be used due to an old version of the CobraNet module being installed in the ACU16-C or NHB32-C. This depends upon their production timing.
Units whose serial number (found on the rear panel) start with the following letters* cannot switch latency. Units with other serial numbers can normally switch to low latency without firmware update.
* IO, IP, IX, IY, IZ, JH, JI, JJ, JK
The latency sometimes cannot be switched due to different version combinations, as the CobraNet module must be a compatible version with the ACU16-C and NHB32-C firmware. If the latency cannot be switched, then check the version combination and the behaviour in the following table.
| ACU16-C NHB32-C | CobraNet Module | Behavior when latency is switched |
|---|---|---|
| V1.01 | V2.8.8 | NetworkAmp Manager is working at 5.33ms without any change though it looks as if it is set. It does not show error messages, etc. Choose 5.33ms to operate it. |
| V2.9.4 V2.9.8 V2.9.16 | ||
| V1.10 V1.11 | V2.8.8 | The latency can be set only to 5.33ms. An applicable ACU16-C or NHB32-C shows an error message, "An error has occurred! Skip this device or abort?" if users try to execute "Connect & send to network" to set latency to other than 5.33ms. Choose 5.33ms to operate it. |
| V2.9.4 V2.9.8 V2.9.16 | Users can switch the latency normally. |
NetworkAmp Manager V1.1.0E Plus
Updated device list now contains Tn Series amplifiers.
ACU16-C, NHB32-C Firmware V1.11
