Cisco ONS 15454 SDH Specifications Page 248

  • Download
  • Add to my manuals
  • Print
  • Page
    / 262
  • Table of contents
  • TROUBLESHOOTING
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 247
Glossary
GL-18
Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, R3.3
May 2002
Revertive switching
A process that sends electrical interfaces (traffic) back to the original working card after the card comes back online.
Rising threshold
The number of occurrences (collisions) that must be exceeded to trigger an event.
RJ-45
Registered Jack #45 (8-pin).
RMA
Return Materials Authorization.
RMON
(Remote Network Monitoring). Allows network operators to monitor the health of the network with a Network Management
System (NMS). RMON watches several variables, such as Ethernet collisions, and triggers an event when a variable crosses a
threshold in the specified time interval.
RS-232
Recommended Standard #232 (ANSI Electrical Interface for Serial Communication).
Rx
Receive.
S
SCI
Serial Communication Interface.
SCL
System Communications Link.
SDCC
Section Data Communication Channel.
SDH
(Synchronous Digital Hierarchy). European standard that defines a set of rate and format standards that are transmitted using
optical signals over fiber. SDH is similar to SONET, with a basic SDH rate of 155.52 Mbps. Compare SONET.
SEF
Severely Errored Frame.
SELV
Safety Extra-Low Voltage.
Page view 247
1 2 ... 243 244 245 246 247 248 249 250 251 252 253 ... 261 262

Comments to this Manuals

No comments