Atec Agilent-J3763A User Manual
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General
This interface comprises a choice of two plug-in modules (J2294C and J2296B)
suitable for plugging into the J2300C/D Advisor mainframe and the J2900A High
Speed undercradle. The J2294C has RJ-45 and DB-9 connectors which, with
converter cables, can connect to 120 Ohm Small Siemens connectors; the
J2296B has 75 Ohm BNC connectors. These modules handle cell and frame-
based technologies, i.e. ATM, Frame Relay, ISDN, HDLC, X.25, PPP, and BERT.
These interfaces do not support Frame Relay CIR and SLA measurements.
Common to Inputs and Outputs:
Connectors:
J2294C: balanced 120 Ohm DB-9 and RJ-45
J2296B: unbalanced 75 Ohm BNC female
Line Code:
ATM: HDB3
WAN: HDB3, AMI
Electrical:
ITU-T G.703
Framing:
ATM:
ITU-T G.704 alternate framing with or without CRC-4
WAN:
ITU-T G.704 alternate framing with or without CRC-4
Fractional channel, any multiple of 64 kbps channel
Unframed at 2.048 Mbps
Cell Mapping:
Direct (ITU-T G.804)
Cell Scrambling:
Conforms to ITU-T I.432.1 (x
43
+ 1) and may be turned on or off
Inputs:
Two ports
Levels:
ITU-T G.703
Monitor modes:
Terminated, 120 Ohm balanced (J2294C)
Bridged (High Impedance)
Terminated, 75 Ohm unbalanced (J2296B)
Monitor Jack -20 dB and -30 dB
Physical Layer Alarms and Statistics:
Loss of Signal (LOS)
Loss of Frame (LOF)
Alarm Indication Signal (AIS)
Remote Alarm Indication (RAI)
Line code violations
CRC-4 errors (if CRC-4 is selected)
Frame alignment error
Loss of Cell Delineation (LCD)
ATM Layer Statistics:
Average utilization in percent
Instantaneous utilization in percent
Total cells received
Idle/unassigned cells received
Busy (assigned) cells received
Header (HEC) errors
Capture buffer size: 28 Mbyte (approximately 400,000 cells)
Capture buffer timestamp resolution: 100 ns
Capture rate: Full line rate