E&M Card Specifications - Zhone IMACS 8000 User Manual

Running Head
E&M Card Specifications
11.5 E&M Card Specifications
E&M Cards (E&M-2W-8P and E&M-4W-8P)
Physical Interface (Models
EM-2W-8P and EM-4W-8P)
Number of Ports
Connectors
Transmission Performance
Performance
Signaling
Signaling Types
Signal Modes
VF Transmission Characteristics
Nominal Transmit TLP
Nominal Receive TLP
Termination Impedance
PCM Encoding
Attenuation Versus Frequency as per AT&T TR43801 - Relative to 1 kHz with 0 dBm0 input
Frequency
200 Hz
300 to 3000 Hz
3200 Hz
3400 Hz
Return Loss
Model E&M-2W-8P 2-wire
Model E&M-4W-8P 4-wire
4W Return Loss (at 1 kHz)
2W Return Loss (at 1 kHz)
11-20
8
1 female 50-pin telco connector
Exceeds requirements of ITU-T G.712 (4-wire) and IT-T G.713 (2-wire)
Switch selectable per card
Types I, II, IV and V
Normal (toward user) and Trunk/Tandem (toward CO)
Software selectable per port
Transmit Only (to)
Standard Type I, II, IV or V E&M (e&m)
Symmetrical R2 signaling (e&mr2)
Modified R2 (r2mod)
Software selectable
Model 8108 -16.5 dB to +7.3 dB in steps of 0.1 dB
Model 8115 and 8119 -17.5 dB to +14.5 dB in steps of 0.1 dB
Software selectable
All Models -16.3 dB to +7.5 dB in steps of 0.1 dB
with 2.16 µf capacitor in series 600 Ohms
Software selectable
µ-law
A-law
A-law bit inverted
Transmit (A to D) Receive (D to A)
-0.25 to +3.0 dB -0.25 to +2.0 dB
-0.25 to +0.5 dB -0.25 to +0.5 dB
0.25 to +0.75 dB -0.25 to +0.75 dB
-0.25 to +1.5 dB -0.25 to +1.5 dB
Against 600 Ohms, in series with 2.6 µf with additional 25 Ohms
resistor between the channel unit and the return loss measurement set.
Echo 28dB min.
Singing 20dB min.
1kHz 28dB min.
300 to 3000 Hz 23dB min.
>20dB Typical > 27dB
>15dB Typical> 20dB
Model No.
E&M Card
Voice Cards