-6 IGX 8 Installation Manual, Release 8.2.0
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.
