AASTRA 6757i CT RP - Manual (Page 12)

6 Model 6757i CT RP Phone Installation Guide
Phone Parts
Optional Accessories for 6757i CT RP (Not Included)
A PoE (Power over Ethernet) inline power injector supplies 48v power to
the 6757i CT RP through the Ethernet Cable on pins 4 & 5 and 7 & 8.
Warning: Do not use this PoE inline power injector to power other
devices.
The Model M670i Expansion Module and Model M675i Expansion Module
attach to the right side of the 6757i CT RP phone. Model M670i provides 36
additional softkeys for the phone. Model M675i provides 60 additional
softkeys. For more information about the expansion modules, see the
section,
Model M670i and M675i Expansion Modules on page page 33.
Additional Ethernet Cable PoE (Power over Ethernet)
Inline Power Injector
(category 5/5e straight
through cable)
Model M670i Expansion Module Model M675i Expansion Module