Fractional E1 Access Units
Fractional E1 Access Units
Fractional E1 Access Units
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Specifications - <strong>E1</strong> Specifications - T1<br />
Receiver Interface of <strong>E1</strong>/ CEPT<br />
Line Code<br />
Pulse characteristics<br />
Jitter Tolerance<br />
Input Port Type<br />
Input mode (with AGC)<br />
HDB3/ AMI<br />
meets ITU G.703<br />
meets ITU G.823<br />
Coaxial pair Symmetrical pair DB15<br />
Termination Coaxial Pair Impedance:<br />
75ohm resistive<br />
(unbalanced)<br />
Symmetrical Pair<br />
Impedance: 120ohm<br />
resistive(balanced)<br />
Return Loss: >18dB<br />
Receive Sensitivity:+3dB<br />
to -40dB<br />
Bridge Mode:<br />
Impedance<br />
DSX-MONitor<br />
Mode<br />
Receive<br />
Timing Range<br />
Transmitter Interface of <strong>E1</strong>/CEPT<br />
Bit Rate<br />
Line Code<br />
Pulse characteristics<br />
Pulse Amplitude<br />
Zero Amplitude<br />
Jitter Tolerance<br />
Output Port Type<br />
TX Clock Source<br />
<strong>E1</strong>/CEPT Frame<br />
Structure<br />
Line Build Out<br />
>1000ohm Receive<br />
Sensitivity: +3dB — -30dB<br />
Coaxial Pair Impedance:<br />
75ohm<br />
resistive(unbalanced)<br />
Symmetrical Pair<br />
Impedance: 120 ohm<br />
resistive(balanced)<br />
Receive Sensitivity:<br />
+6dBdsx to -30dBdsx<br />
2.048MHz — 1000Hz<br />
2048K bit/s ± 3ppm<br />
HDB3/ AMI<br />
Meets ITU G.703<br />
Nominal 2.37V for CoaxialPair 75 ohm<br />
Nominal 3.00V for Symmetrical Pair 120<br />
ohm<br />
0.1 V max<br />
Meets ITU G.823<br />
Coaxial pair: BNC (unbalanced)<br />
Symmetrical pair: Bantam or DB15<br />
(balanced)<br />
Internal Timing: 2.048MHz ± 3ppm<br />
Internal Timing + 50ppm offset<br />
(30ppm factory option)<br />
Internal Timing - 50ppm offset<br />
(30ppm factory option)<br />
Recovery from RX Timing (Loop Timing)<br />
External Timing<br />
Data Port Timing<br />
Unframed<br />
FAS (PCM31)/ FAS+CRC4<br />
(PCM31 with CRC)<br />
FAS+CAS (PCM30)/ FAS+CRC4+CAS<br />
(PCM30 with CRC)<br />
0dB, -7.5dB, -15dB, -22.5dB<br />
(Accuracy: ±1dB)<br />
Receiver Interface of T1/DS1<br />
Line Code<br />
Pulse characteristics<br />
Jitter Tolerance<br />
Input Port Type<br />
Input mode (with AGC)<br />
B8ZS/ AMI<br />
Meets ITU G.703<br />
Meets ITU G.824<br />
Symmetrical pair: Bantam or DB15<br />
(balanced)<br />
Termination Symmetrical Pair<br />
Impedance: 100ohm<br />
resistive ± 5% resistive<br />
(unbalanced)<br />
Return Loss >18dB<br />
Receive Sensitivity:<br />
+6dB to -36dB<br />
Bridge Mode Impedance: >1000ohm,<br />
Receive Sensitivity: +6dB<br />
to -36dB<br />
DSX-Monitor<br />
Mode<br />
Receive<br />
Timing Range<br />
Transmitter Interface of T1/DS1<br />
Bit Rate<br />
Line Code<br />
Pulse characteristics<br />
Pluse Amplitude<br />
Zero Amplitude<br />
Jitter Tolerance<br />
Output Port Type<br />
TX Clock Source<br />
T1/DS1 Frame<br />
Structure<br />
Line Build Out<br />
Symmetrical Pair<br />
Impedance: 100ohm ± 5%<br />
resistive<br />
Receive Sensitivity: up to<br />
-30dBdsx<br />
1.544MHz ± 4000Hz<br />
1544K bit/s ± 3ppm<br />
B8ZS/ AMI<br />
Meets ITU G.703<br />
Nominal 3.00V for Symmetrical Pair 100<br />
ohm<br />
0.1 V max<br />
Meets ITU G.824<br />
Symmetrical pair: Bantam or DB15<br />
(balanced)<br />
Internal Timing: 1.544MHz ± 3ppm<br />
Internal Timing +50ppm offset (30ppm<br />
factory option)<br />
Internal Timing -50ppm offset (30ppm<br />
factory option)<br />
Recovery from RX Timing (Loop Timing)<br />
External Timing<br />
Data Port Timing<br />
ESF/ ESF+CRC6/ D4(SF)/ SLC-96/ T1DM/<br />
Unframed<br />
0dB, -7.5dB, -15dB, -22.5dB<br />
(Accuracy: ±1dB)<br />
IP Surveillance<br />
Fiber Series PDH Series Broadband <strong>Access</strong><br />
5<br />
Measurement<br />
Interface<br />
Converter<br />
Datacom<br />
<strong>Access</strong>ories<br />
Network<br />
Management<br />
5-8
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