E1 Interface, IGX 8 Installation Manual, Release

E1 Interface

Line Rate:	2.048 Mbps, ± 50 bps (± 200 bps VCO lock range)
Line Code:	Bipolar AMI or HDB3
Line Impedance:	120 Ohms (balanced) or 75 Ohms (balanced or unbalanced)
Minimum Pulse Density:	Zero code suppression via HDB3 coding
Frame Format:	Unframed, 32-channel (G.703). Framed: 30 or 31-channel CEPT
	multiframe per ITU-T G.704.
VF Signalling:	CAS or CCS
Max. Line Lengths:	E1 output complies with G.703, so cabling must not exceed
	–6dB/1000 feet at 1024 kHz (applies to 75 Ohm coax or 120 Ohm
	twisted pair up to 350 meters or 1000 feet). StrataCom supplies
	cable with a maximum attenuation of 7 dB /1000 ft., so the
	maximum length of this cable is 850 feet (260 meters).
Jitter:	Meets G.823.
Electrical Interface:	Complies with G.703 Speciﬁcation.
Connector:	DB 15 female or BNC.