1. Feature Enhancements / Functional Changes

• Upgrade to new MVL DSP code release 02.22.00

Reasons for changes relative to DSP V02.22.00 for 02.21.00:

• "ATU-R On-Hook Voltage Threshold" Adapter Option default value is changed from 19V to 34V in order to fix the occasional off-hook detection failures that result in very high phone handset noise levels, and loss of data transport when a phone is off-hook at the premises on 6310-A1 and A2. This change is directed to customers, where the loop plant typically has short 48V loops. This change raises the end-point’s on-hook threshold to a level that on-hook will not be detected in 24V systems.

• Replace driver on/off hook mode with mute mode when on-hook, or on dry lines. This improves common mode rejection (CMR) of noise on-hook on 6310-A2s. This change is directed to customers where poor to no on-hook data performance, and acceptable off-hook performance has been seen. The mute mode improves the on-hook CMR performance, at the expense of 3 to 6 dB of on-hook data performance, in a low noise environment.

• Put code in place to prevent download of 6310-A3 firmware to this platform.

• Added new TxPower settings to the TxPower range (11dB to -11 dB)

2. Resolved Customer Issues

Action Request Number	Description
N/A

3. Hardware Co-Requirements

For proper operation with an 88xx/86xx DSLAM, this release requires an 8000 IP Conservative MCC, MCC Plus, or MCP with appropriate firmware:

Card Type	CCA #	DSLAM
8312 MVL 12 Port Card	868-3426-8201, Rev .80A	8610 and 8820
8314 MVL 12 Port Card	868-4427-8000, Rev 80A	8820
8000 IP Conservative MCC	868-1010-81xx (xx = 00, 01, 02, …)	8600, 8800, 8810
8000 IP Conservative MCC Plus	868-3882-80xx (xx = 00, 01, 02, …)	8600, 8800, 8810
8000 IP Conservative MCP	868-3883-80xx (xx = 00, 01, 02, …)	8610 and 8820

4. Software Co-Requirements

Card Type	CCA #	Firmware
8312 MVL 12 Port Card	868-3426-8201, Rev .80A	02.01.48 or greater
8314 MVL 12 Port Card	868-4427-8000, Rev 80A	02.01.48 or greater
8000 IP Conservative MCC	868-1010-81xx (xx = 00, 01, 02, …)	04.01.21 or greater
8000 IP Conservative MCC Plus	868-3882-80xx (xx = 00, 01, 02, …)	04.01.21 or greater
8000 IP Conservative MCP	868-3883-80xx (xx = 00, 01, 02, …)	04.01.21 or greater

5. Compatibility With Other Released Models

• 6310-A1 RTUs should not be used in a multi-point configuration on 8312 MVL line cards.

• 6310-A2 and 6310-A3 RTUs can be used in a multi-point configuration and can be mixed, ie. , user can utilize -A2s and -A3s multi-dropped on the same port.

• If loop length is greater that 8k better performance is achieved if there is at least one -A3 endpoint in the configuration.

MD = Multidrop supported C = Compatible Empty = Not compatible