Atec Agilent-J2300E - Manual (Page 74)

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E3 (34.368 Mb/s) J3759B
General
This interface comprises a plug-in module (J3759B) suitable for plugging into
the J2300C/D/E Advisor mainframe and the J2900A High Speed undercradle.
The J3759B supports both ATM and frame-based technologies such as Frame
Relay (CIR & SLA), HDLC, PPP in addition to BERT. This module can also be
configured for use as a DS3 (44.736 Mb/s) interface; see below for details.
Common to Inputs and Outputs:
Connectors: 75 Ohm BNC female
Electrical: ITU-T G.703
Line Code: HDB3
Framing:
Frame Relay: ITU-T G.751
ATM Direct: ITU-T G.832
ATM PLCP: ITU-T G.751
Cell Mapping:
Direct (normal mode, ITU-T G.804)
PLCP (obsolete mode, ETSI 300 214)
Cell Scrambling:
Conforms to ITU-T I.432.1 (x 43 + 1) and may be turned on or off
Inputs:
Two ports
Levels:
Auto gain control for high, low and monitor jack; all unbalanced 1.2Vpeak
to 26mVpeak, 34 dB dynamic range
Received pulse amplitude measurement (mVpeak)
Monitor modes:
Terminated/Repeater (75 Ohm unbalanced)
Bridged (high impedance)
Physical Layer Alarms and Statistics:
Loss of Signal (LOS)
Loss of Frame (LOF)
Line code violations
Alarm Indication Signal (AIS)
Remote Defect Indication (RDI), formerly known as FERF
Remote Error Indication (REI), formerly known as FEBE
Bit Interleave Parity (BIP-8)
Payload type mismatch
Loss of Cell Delineation (LCD)
ATM Statistics:
Auto-discovery of up to 1024 VCs and collection of statistics on each
Average utilization in percent
Instantaneous utilization in percent
Maximum utilization in percent
Total cells received
Idle/unassigned cells received
Busy (assigned) cells received
Header (“HEC”) errors
Frame Relay Statistics:
Average utilization in percent
Instantaneous utilization in percent
Maximum utilization in percent
Minimum utilization in percent
Total frames
Total octets
ATM and WAN Interface
Specifications
(continued)