344
Signal level to declare Loss of Signal: -35 dB
Signal Level to clear loss of signal: -15 dB
E3 TRANSMITTER:
Impedance: 75 Ohms
Output Pulse: Nominal 0.8 Vpk (+/- 5%) conforms to ITU G.703
External Clock Input: 75 Ohms, BNC connector
Frequency Range:
Input: 34,380 +/-500 ppm
Output: 34.380+/- 5 ppm standard
Transmit clock: Internal, 5ppm
External TTL
Recovered
E3 GENERAL:
Alarm Indicator: Red LED (Alarm: AIS, Remote Alarm Indicator RAI)
Status Indicators :
Signal – Green LED ON when signal present and LED OFF when
signal lost.
Frame Sync – Green LED ON when E3 frame is synchronized and
LED OFF when E3 is Out Of Frame,
Pattern Sync: Green LED ON when Bert pattern is synchronized and
LED OFF when sync is lost (No pattern sync)
Error Indicator: summary for any type of error occurance
Loss of Power Status: Low Battery Voltage Flashes on the screen
when 5 minutes or about of charge remains.
BERT:
Patterns: 2
n
-1, n=7,9,10,15,20,21, 23, QRSS ,All Zero, All Ones, 1:3,
1:7, 1:15,1:31,
Measurements:
Logic Errors and Rate
Frame Errors and Rate
Bipolar Violations and Rate
Summary Errored Seconds
Summary Error Free Seconds
G.821 errors and %: EFS, ERS, SES, AVS, UAVS
Error Injection:
Logic: Rate Continuous, Single
Bipolar Violations: Rate Continuous, Single
Frame: Rate Continuous, Single
Send Alarms: AIS, RAI, LOS, LOF
LOOPBACKS:
Remote Loopback, Local Loopback
21.9 T3(DS3) Analyzer Option:
Framing Modes: Unframed, Framed M13 & C-bit
Line Coding: B3ZS
Input/Output Connectors: BNC
T3 RECEIVER:
Impedance: 75 Ohms
Sensitivity:
DSX: 0 to 26 dB resistive loss or 6 dB cable loss from nominal DSX
leve
LOW: 0 to 20 dB resistive loss or 6 dB cable loss from nominal LOW
level
Jitter Tolerance: Exceeds TR- TSY – 000499 category II equipment
requirements
T3 TRANSMITTER:
Impedance: 75 Ohms
Output Pulse