AVAYA IP400 DIGITAL STATION 30 (700184880, 700359847) - Provides an additional 30 DigitalStation ports to the IP406 and IP412. Included: IP400 EXP RJ45/RJ/45 1M Blue For Connecting Expansion Module to Base Unit. IP400 digital station 30 V2 changes from V1: The DS ports have been rotated 180° to allow easier connection access. The port status LED's have been moved and grouped adjacent to the ports. The DTE serial port on the rear of the module has been changed to a 9-pin D-type socket. The DS V2 uses an earthed 3-pin 60W external power supply unit.