The Juniper Networks single-port T1 Mini Physical Interface Modules (Mini-PIM) for the SSG 20 platform complement the five on-board 10/100 Ethernet interfaces with expanded WAN connectivity. The T1 Mini-PIMs include one physical T1 port with an integrated CSU/DSU. The combination of a T1 modem and an integrated CSU/DSU eliminates the need to deploy several separate external devices, thereby consolidating devices to reduce capital expenditures, saving valuable space and simplifying management.