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E1 Interface for UFI-8E1
The following applies to E1 lines on an UFI-8E1:
Line Interface Connector DB15 (120 Ohms) for UFI-8E1-DB15
BNC (75 Ohms) for UFI-8E1-BNC
Line Rate: 2.048 Mbps, ±50 bps (±200 bps VCO lock range).
Frame Relay Interface Meets ANSI T1.618, two-octet header.
Number of Frame Relay
Interfaces
1–31 occupied channels where 1 <= n <= 31, and the sum of all
n <= 31
Frame Relay Interface Rate Either 56 Kbps or n x 64 Kbps, where 1 <= n <= 31. Sum of all
n <= 31.
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).
Input Jitter Tolerance: Meets G.703.
Output Jitter Tolerance: Meets G.703.
Electrical Interface: Complies with G.703 Specification.
Connector: DB 15 female or BNC.