Conexant Bt8960, Руководство пользователя по оборудованию

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Bt8960EVM Hardware User’s Guide
Bt8960
Setup Instructions Bt8960EVM Hardware User’s Guide
4
Conexant
100188B
Conexant Proprietary and Confidential
Follow the steps below to set up the EVM for loop performance evaluation.
1.
Connect all cables as shown in the Figure 1 , Loop Performance Test Setup
(C to R).
a.
Bit Error Rate Detector Connection—The FIREBERD 6000 (w/
lab interface) is recommended (see “Recommended Equipment”
section herein). If it is used, the lab interface should be set up as
follows (selected on rear panel):
1
Mode: Unipolar Unbalanced
2
Input Impedance: 8 Kohms
3
Clock Phasing: TX and RX falling edges
The FIREBERD should also be configured as follows using the front panel
selections:
4
Data: 2^23-1
5
GEN CLK: INTF
6
TIMING MODE: SYNC
7
ANALYSIS MODE: CONTINUOUS
8
MENU: INTF SETUP: LAB
9
AUXILIARY: default settings (“AUX FUNC IN
USE” will illuminate if default is not used)
b.
Wireline Simulator Connection—Connectors J1 (RJ-45) or J2
(screw tightened terminal strips) on the line interface cards
should be connected to points “A” and “B” on the wireline
simulator. If either of the J2 connectors are used, be sure the
polarity is the same at each line interface card. If the polarity is
reversed (i.e., tip/ring reversal), the 8960EVM will start up, but
the Bit Error Rate Detector may not synchronize. The wireline
simulator can also be bypassed by connecting J1 or J2 on the “C”
line interface card directly to J1 or J2 on the “R” line interface
card
c.
Power Supply Connection—Connect the power supply as shown.
Make sure the power switch is in the “OFF” position.
d.
PC Connection (optional)—If a PC is connected to the EVM
through the RS-232 COM1 and COM2 serial communication
ports, the User Interface Program (UIP) can be used to monitor
the status of the EVM during startup and normal operation. The
UIP can also be used to exercise a variety of other test modes and
functions of the EVM. Instructions for running the UIP are listed
below in the UIP Quick Start section. Please see the UIP User’s
Guide for more details.
2.
Turn the power switch to the “ON” position.
3.
After power is applied, both line cards in the EVM will perform self-test.
During self-test, the START-UP and ERROR LEDs will illuminate. If the
self-test fails, they will remain illuminated and the EVM will go into the
idle state. If both line cards pass self-test, the EVM will automatically try
to startup on the loop connected between the line terminals on the EVM