30th March 2007 at 16:36
#46929
vasu
Guest
E1s are 2MBPS DIGITAL LINES WHICH CARRY 30 VOICE CHANNELS OR
2048 KBPS OF DATA. THESE ARE
PRIMARY LINES EXTENDED TO CUSTOMERS AND MULTIPLEXED FURTHER
TO FORM HIGH SPEED DATA TO BE
SENT ON OPTICAL CABLES FOR LONG
DISTANCE.