HP 0231A54P - MSR 2-port T1/CT1/PRI MIM module (MIM-2T1) - Multifunction Interface Module (MIM) with two RJ-45 connectors that transmit, receive, and handles T1 data streams - Can also be used for CT1 access and ISDN PRI functions Retail
HP 0231A56X - MSR 8-port T1/CT1/PRI MIM module (MIM-8T1) - Multifunction Interface Module (MIM) with one D 68-pin connector that transmit, receive, and handles eight channels of T1 data streams - Can also be used for CT1 access and ISDN PRI functions Retail
HP 3C13772 - 2-Port ADSL over plain old telephone service (POTS) multi-function interface module Retail