Specifications

Section 4.7 FXS UIG Total Access 600 Series System Manual
348 © 2002 ADTRAN, Inc. 61200624L1-1A
2. FXS VOICE PORTS SPECIFICATIONS
The FXS conforms to the following specifications:
3. WIRING
A single 50-pin female amphenol connector on the rear of the Total Access 600 chassis provides the
interconnect wiring for the four analog circuits on each access module. Figure 1 shows the pinout
connection.
Figure 1. Connector Pin Assignments
ELECTRICAL SPECIFICATIONS
Loop Current
24 mA nominal
20 mA minimum
Terminating Impedance
600 ohm
Return Loss
600 ohm + 2.16 µF,
ERL > 28 dB,
SRL > 20 dB
Trans Hybrid Loss
600 ohm + 2.16 µF,
ERL > 28 dB,
SRL > 20 dB
Longitudinal Balance
200, 500, and 1000 Hz: > 58 dB min., > 63 dB
avg.
3000 Hz: > 53 dB min., > 58 dB avg.
Frequency Response
300 to 3400 Hz: -0.5 and 1.0 dB
Idle Channel Noise
< 20 dBrnC
Signal-to-Distortion Ratio
0 to -30 dBm0: > 33 dB
-30 to -40 dBm0: > 27 dB
261
272
283
294
305
316
327
338
349
3510
3611
3712
3813
3914
4015
4116
4217
4318
4419
4520
4621
4722
4823
4924
5025
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
NC
NC
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
50 PIN
AMP
RECEPTACLE
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
T
T
R
T
T
R
R
Slot 6
P
P
P
P
Circuit 1
Circuit 2
Circuit 3
Circuit 4
Circuit 1
Circuit 2
Circuit 3
Circuit 4
Circuit 1
Circuit 2
Circuit 3
Circuit 4
Circuit 1
Circuit 2
Circuit 3
Circuit 4
Circuit 1
Circuit 2
Circuit 3
Circuit 4
Circuit 1
Circuit 2
Circuit 3
Circuit 4
R