This card provides 12 RJ45 ports. The first 8 ports are DS ports for the connection of Avaya digital phones. The card can be fitted with an IP Office 500 daughter trunk card, which then uses the additional 4 RJ45 ports for trunk connections. Provides connection for up to 8 Digital Extensions supporting 2400, 5400 & 6400 Series Telephone sets Avaya 4400 series telephones are not supported on this module, only on Digital Station expansion modules. Hence, a max of two hundred and fourty 4400 series phones are supported in the system.

Compatible with 2400, 5400, and 6400 series digital telephones Connect up to 8 IP Office-supported Digital Sets (except the 44xx Series) Can be fitted with IP Office 500 Daughter Trunk Card Maximum of 3 per IP500 Control Unit Accepts 1 IP Office 500 Trunk Daughter Card of any type