ZyXEL Communications VDSL2 Line Card VLC1324G - Manual (Page 25)

Chapter 2 VLC Specifications
VLC1324G User’s Guide
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2.2 VLC Firmware Naming Conventions
A firmware version includes the model code and release number as shown in the following
example:
Firmware Version: V3.90(AYL.0) , V3.90(BBW.0) ,
“AYL” or “BBW” is the model code.
• "AYL" denotes the VLC1324G-51 for VDSL over POTS (Annex A).
• "BBW" denotes the VLC1324G-53 for VDSL over ISDN (Annex B).
“0” is the firmware’s release number. This varies as new firmware is released. Your firmware’s
release number may not match what is displayed in this User’s Guide.
2.3 Telco-50 Connector Pin Assignments
The following figures and table describe the pin assignments for the VLC’s Telco-50
connector. The splitter card’s Telco-50 connector and the USER and CO hardware Telco-50
connectors on the rear panel of the splitter chassis also use the same pin assignments.
Figure 3 VLC Ports 1-24 Telco-50 Connector Pin Assignments
Table 5 VLC Telco-50 Connector Pin Assignments
PORTS 1-24
Pin 1 NULL Pin 26 NULL
Pin 2 Ring Port 24 Pin 27 Tip Port 24
Pin 3 Ring Port 23 Pin 28 Tip Port 23
Pin 4 Ring Port 22 Pin 29 Tip Port 22
Pin 5 Ring Port 21 Pin 30 Tip Port 21
Pin 6 Ring Port 20 Pin 31 Tip Port 20
Pin 7 Ring Port 19 Pin 32 Tip Port 19