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Appendix A
Specifications
MSAM specifications
T-BERD/MTS/SC Getting Started Guide
Page 214
22046537, Rev. 016
March 2018
E1 (2M) electrical specifications
through
list specifications for the E1
(2M) receivers and transmitters.
Receivers
The E1 receivers operate as per ITU-G.703 (11/01).
lists the receiver speci-
fications.
Frequency
Range: 1.544 MHz ±250 ppm
Accuracy: ± 1.5 ppm, ± 1 ppm per year aging
Resolution: 1 Hz or 1 ppm
Level dBdsx
1
Range: +7.3 dBdsx to -37 dBdsx
Resolution: 0.1 dB
Level dBm
2
Range: +23.8 dBm to -10.5 dBm
Resolution: 0.1 dB
1. The designation dBdsx is a level measurement in dB relative to dsx level, which is 6 V peak-peak. A signal with a
peak-peak level of 6V corresponds to 0 dBdsx.
2. Available only when unframed all ones (AIS) signal is detected.
Table 120
DS1 frequency, level, and jitter measurement specifications (Continued)
Parameter
Specification
Table 121
E1 receiver specifications
Parameter
Specification
Input
One Balanced RJ-48 jack. Two Unbalanced BNC
connectors. Secondary Input may also be used as an
external E1 reference clock:
– 0.5 to 3 Vpp square or sine wave, 2.048 MHz,
unbalanced/ 75
Ω
Bit rate
2.048 Mbps
Frequency measurement
Range: 2.048 MHz ±250 ppm
Accuracy: ±1.5 ppm, ±1 ppm per year aging
Resolution: 1 Hz
Level Measurement (Bal-
anced)
Level Vp
Range: +7 V to 0.03 V
Accuracy: ±0.02 V ± 10%
Resolution: 0.01 V
Level dBnom
1
:
Range: 7.3 dBnom to -37 dBnom
Resolution: 0.1 dB
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