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G L O S S A R Y
G L - 2 9
365-372-334 R2.0
Issue 4, November 2004
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UPD/INIT
A push-button on the SYSCTL faceplate.
V
VM - Violation Monitor
A mode of the DS3 circuit pack in which it will monitor but not remove P-bit parity
violations on the DS3 signal from the received fiber.
VMR - Violation Monitor and Removal
A mode of the DS3 circuit pack in which it will monitor and remove P-bit parity
violations on the DS3 signal received from the fiber.
VT - Virtual Tributary
A structure designed for transport and switching of a sub-DS3 payload.
VT1.5
A 1.728 Mb/s virtual tributary.
VT-G - Virtual Tributary Group
A 9-row by 12-column SONET structure (108 bytes) that carries one or more VTs
of the same size. Seven VT groups (756 bytes) are byte-interleaved within the VT-
organized STS-1 synchronous payload envelope
Z
Zero Code Suppression
A technique used to reduce the number of consecutive zeros in a line-codes signal
(B3ZS for DS3 signals and B8ZS for DS1 signals).
Summary of Contents for Metropolis DMXplore
Page 8: ... C O N T E N T S v i i i 365 372 334 R2 0 Issue 4 November 2004 ...
Page 16: ... T A B L E S x v i 365 372 334 R2 0 Issue 4 Novmeber 2004 Glossary ...
Page 286: ... Backplane Pin Replacement Replacement Methods D 1 0 365 372 334 R2 0 Issue 4 November 2004 ...
Page 292: ... Installation Checklist Overview E 6 365 372 334 R2 0 Issue 4 November 2004 ...
Page 326: ... G L O S S A R Y G L 3 0 365 372 334 R2 0 Issue 4 November 2004 ...