Clear-Com HX System Frames - Manual (Page 79)

The CAT5 cable connecting the E1 port on the E-QUE rear card may be a crossover cable
or a straight-through cable depending on the requirements of the third party equipment.The
E-Que interface should be set to Direct in EHX.
7.4.2 T1 trunking
The E-QUE interface card can provide T1 trunking between Eclipse HX systems and
between Eclipse HX systems and compatible third-party equipment.
T1 mode provides 24 channels of G.722 encoded audio are available on each of ports 1 and
5, giving 48 channels per card.
The T1 trunking specifications are:
• B8ZS Encoding.
• Extended Super Frame.
• Long Haul Receive Signal Level.
• T1 Long Haul (LBO 0 dB) Transmit Pulse Amplitude.
• Balanced.
• 120 Ohm Line Impedance.
• No Signaling.
• G.722 64 kbit/s Audio Encoding.
• Tx Clock locally generated.
• Rx Clock Line Recovered.
79 Eclipse HX Matrix Frame Installation Guide