Overview; Introduction; Power; Primary And Reference T1 Receivers - Fluke 635 User Manual

2-1. Introduction

This chapter of the manual contains information to familiarize you with
QuickBERT-T1 and QuickCHECK-T1 controls and indicators. Refer to
Appendix A for test set specifications. Figure 2-1 and 2-2 illustrate all control
and indicator locations.

2-2. Power

The primary power source for the QuickBERT-T1 and QuickCHECK-T1 is a
rechargeable, NiMH (nickel metal hydride) battery pack. An auxiliary power
connector is available for use with an A/C power adapter (which is provided
with the unit). The ON/OFF switch is located between the power (9 VDC)
jack and the RX bantam jack on the top panel of the unit. During battery
operation, the LOW BATTERY LED will illuminate to indicate that the
battery pack has nearly exhausted its charge and that the test set should be
recharged.
If the test set is not turned off before the battery is completely
exhausted, the unit will shut down to prevent battery damage. If this
occurs, the unit will resume normal operation once recharge is
performed.

2-3. Primary And Reference T1 Receivers

The QuickBERT-T1 and QuickCHECK-T1 are equipped with two T1
receivers: primary (Rx) and reference (REF). The test set performs analysis on
the signal present at the Rx receiver. The REF receiver provides the clock
reference for performing clock-slip measurements.
On the QuickBERT-T1, the REF receiver functions as the transmit clock
source when external (EXT) clock is selected. For additional information on
clock-source selection, see section 2-18.
Note
Chapter 2

Overview

2-1