.
PXB4219E - Interworking Element for 8 E1/T1 Lines
PXB4221E - Interworking Element for 8 E1/T1 Lines
PXB4219 - IWE8 Interworking Element for 8 E1/T1 Lines
PXB4220 - IWE8 Interworking Element for 8 E1/T1 Lines
PXB4220E - Interworking Element for 8 E1/T1 Lines
PXB4221 - IWE8 Interworking Element for 8 E1/T1 Lines
PM7354 - ATM to Ethernet Interworking at GE Wire Speed
