Cisco IGX 8 Specification Sheet page 6

E1 Interface
Line Rate:
Line Code:
Line Impedance:
Minimum Pulse Density:
Frame Format:
VF Signalling:
Max. Line Lengths:
Jitter:
Electrical Interface:
Connector:
-6 IGX 8 Installation Manual, Release 8.2.0
2.048 Mbps, 50 bps ( 200 bps VCO lock range)
Bipolar AMI or HDB3
120 Ohms (balanced) or 75 Ohms (balanced or unbalanced)
Zero code suppression via HDB3 coding
Unframed, 32-channel (G.703). Framed: 30 or 31-channel CEPT
multiframe per ITU-T G.704.
CAS or CCS
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).
Meets G.823.
Complies with G.703 Specification.
DB 15 female or BNC.