... (W*D*H) (mm)436x 300 x 44.5mm ( 1U )Package Size (W*D*H) (mm)765x640x160mmNet weight1.9kgPowerPower ... - 2 E1/T1, 2*100Base-Tx,1*Console port; - 1U 19 inch chassis - Support SIP, SS7/PRI. - G.711, G.726, ... - 4 E1/T1, 2*100Base-Tx,1*Console port; - 1U 19 inch chassis - Support SIP, SS7/PRI. - G.711, G.726, ... - 8 E1/T1, 2*100Base-Tx,1*Console port; - 1U 19 inch chassis - Support SIP, SS7/PRI. - G.711, G.726, ...