Firmware Naming Conventions; Telco-50 Connector Pin Assignments - ZyXEL Communications VOP1372G-61 User Manual

Table 5 Device Specifications
Loop diagnostics
Standards Compliance

2.2 Firmware Naming Conventions

A firmware version includes the model code and release number as shown in the following example.
Firmware Version: V3.97(UHE.0)
"UHE" is the model code.
"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

This section describes the pin assignments on the VOP's Telco-50 connectors, and on the cables
that connect to the VOP.
VOP1372G-61 User's Guide
• Metallic Loop Test (MLT) for subscriber lines:
Hazardous potential test
Foreign voltage test
Three-element capacitance test
Three-element resistance test
Ringing equivalency number test (REN measurement)
• RFC 3525 (Gateway Control Protocol)
• ITU-T H.248-1
• IEEE 802.1Q (Virtual LANs)
Chapter 2 Product Specifications
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