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Metrobility, Metrobility Optical Systems, Lancast, and “twister” are registered trademarks of Metrobility Optical
Systems, Inc. The Metrobility Optical Systems logo is a trademark of Metrobility Optical Systems, Inc.
The information contained in this document is assumed to be correct and current. The manufacturer is not
responsible for errors or omissions and reserves the right to change specifications at any time without notice.
Metrobility Gigabit “twister” and SONET “twister”
Installation & User Guide
Introduction ................................................................................................................ 4
Overview ..................................................................................................................... 5
Installation Guide ....................................................................................................... 6
STEP 1: Unpack the “twister” and Accessories .......................................... 6
STEP 2: Choose an Appropriate Location .................................................. 6
STEP 3: Set the DIP Switches ..................................................................... 7
STEP 4: Connect to the Network ................................................................ 8
STEP 5: Apply Power.................................................................................. 9
User Guide ................................................................................................................ 11
LED Indicators .......................................................................................... 11
Link Loss Return (LLR)............................................................................ 12
Link Loss Carry Forward (LLCF)............................................................. 13
Copper Loss Carry Forward (CLCF) ........................................................ 14
Topology Solutions ................................................................................... 15
Technical Specifications............................................................................ 15
Product Safety, EMC and Compliance Statements ................................... 18
Warranty and Servicing ............................................................................. 19