1. Feature Enhancements / Functional Changes:

M/SDSL endpoint with that supports subrates below 400 (144 kbps, 272 kbps), dual voltage power supply ( +24 volt, -48 volt), alarm contact population option, Tx Power attenuation strap.  This release includes enhanced SNMP device management.

Note: When upgrading code from an earlier version to V01.01.00 or higher through tftp, the user will need to use the ocd file. Once this release is active, the TFTP
will only allow FPI files to be uploaded/downloaded. The OCD file is still used for minimum download.
 

2. Resolved Customer Issues:

 

Action Request Number	Description
PDNaa00320	Disable Send All Ones on Data Port A customer request that the firmware detect that an X21 interface cable is attached to the DTE and automaticaly change the "SENDALL ONES ON DATA PORT NOT READY"  strap TO DISABLED, (because it is invalid for X.21 interface type). If the interface type is X.21, the f/w filters "Send All Ones on Data Port Not Ready" option and set Send All Ones to Disabled. Recommend upgrade if your interfacing to an X21 interface.
PDNaa05592	Problem with Loopback On the 7975-A2 the Network Line loopback and Data Channel Loopback, do  not work unless the SYNC port is attached to a DTE device. Example: Fireberd----8779----7975---(no equipment attached to the DTE) Recommend firmware upgrade.

None.

4. Software Co-Requirements:
 

Card Type	Firmware
8777 T1 TDM-SDSL 8 port line card	A01.02.04 or later
8779 E1 TDM-SDSL 8 port line card	A01.02.04 or later
8774 T1 TDM-SDSL 4 port line card	06.00.00 or later
8775 TDM-SDSL 4 port line card	06.00.00 or later
8776 E1 TDM-SDSL 4 port line card	06.00.00 or later
Endpoint Type	Firmware
7974-A1 T1 TDM-SDSL	06.00.00 or later
7974-A2 T1 TDM-SDSL	N01.00.18 or later
7975-A1 EIA-530 TDM-SDSL	06.00.00 or later
7975-A2 EIA-530 TDM-SDSL	V01.00.18 or later
7976-A1 E1 TDM-SDSL	06.00.00 or later
7976-A2 E1 TDM-SDSL	N01.00.18 or later

DSP Code: This release includes Globespan M/SDSL release 0A.104

Note: When 7975 is NTU with 8779 LTU, use 8779 build A01.01.00 or later for 528kbps, 144kbps rates to run properly.

5. Compatibility With Other  Releases:

For customer payload data, this release is fully compatible with all previously released models.

511 Pattern Test is not supported in this release.

Compatibility with First Generation products (797x-A1, 8774, 8775, 8776):

• This release will not support autorate functionality when connected to first generation products.

• When 7975 is NTU with 8779 LTU, use 8779 build A01.01.00 or later for 528, 144 rates to run properly.
• The new E1<->Nx64 payload rates are only supported when connected to an E1 model (8779 or 7976-A2) running 02.03.12 code or higher.

6. Supporting Customer Documentation / Significant Changes:

The following updated manuals support this product:

• Hotwire TDM SDSL Standalone Termination Units Models 7974-A2, 7975-A2, and 7976-A2 Installation Instructions 7900-A2-GN11-20
• Hotwire TDM SDSL Standalone Termination Units Models 7974-A2, 7975-A2, and 7976-A2 User's Guide 7900-A2-GB21-20