Office WAN 3 10M Module provides for an additional
three X.21/V.3.5/V.24 ports. This expansion
module is connected to the IP403, IP406 and
IP412 using the LAN and does not impact on
the maximum number of Expansion Modules Supported.
Included IP400 EXP RJ45/RJ45 1M Blue for connecting
Expansion Module to Base Unit. Power Lead