Agilent Technologies 37907A Manual do Utilizador descarregar pdf (Página 34)

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E7572A 2.048 Mb/s (E1) Unbalanced LIM

Features:

• Monitor four bi-directional links per LIM (eight receivers)

• GSM sub-rate 32/16/8 kb/s and TRAU support

• Fractional E1 support

Connectors: 8 × BNC connectors

Line codes: HDB3 or AMI

Framing: To ITU-T G.732 (CRC4) as specified in ITU-T G.704

Timestamp accuracy : +/- 12 msec.

Level 1 receive alarm indications:

• Loss of signal

• Alarm indication signal

• Line code violation

• Out of frame (loss of frame)

• Remote alarm indication

• Out of multiframe (CRC4)

Receiver levels

Terminated: Tx level less 30 dB flat loss, less 6 dB cable loss at 1.024 MHz Bridged: Tx level

less 6 dB cable loss at 1.024 MHz

Receiver impedances:

Terminated: 75 ohm

Bridged: 2.4 kohm

Receive clock tolerance: 2.048 MHz ± 50 ppm

J2900A High Speed Undercradle

Physical dimensions:

L × W × H (mm): 310 × 310 × 50.

Weight: 1.5 kg.

Features:

• Attachable undercradle for ATM analysis

• Provides one port for E1/T1 or OC-3/STM-1 ATM module

• Data rates from 1.553Mbps to 155Mbps with VP/VC auto discovery facility

• Full duplex analysis capability

Modules Supported in J2900A:

• J2912B - STM-1/OC-3 Plug-in Module for ATM analysis

• J2298D - E1/T1 RJ-45/RJ-48C/mini-bantam Interface for ATM

• J2294D - E1/T1 DB-9/RJ-45 Interface Module for ATM

• J2296D - E1 BNC 75 ohms Interface Module for ATM

Connectors:

• RJ-45, BNC and mini-bantam for E1/T1

• Optical connectors for OC-3/STM-1 optical

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Agilent Technologies 37907A Manual do Utilizador Página 34