Polycom SpectraLink RCO400 - Manual (Page 48)

SpectraLink 6300 MCU: Facility Preparation
PN: 1725-36122-001_N.doc 48
Connect Demarc Block RJ-21Cables to
Interface Module
Connect the male RJ-21 connector from the appropriate demarcation
block to the designated RJ-21 connector ( A or B ) on each Interface
Module. Secure the cables using the keeper. Dress the cables by wire
wrapping the cable at the rear of the shelf.
Do not connect these cables to the system controller or the system
controller will be damaged.