User's Manual

CHAPTER 2

Hardware

Chapter 2:Hardware

This chapter describes the hardware of the S251B Reader. It tells you which modules

together comprise the reader. It also describes the front panel (switches connections

etc.) and specifies the electrical inputs and outputs.

Topic Page

2.1 General........................................................................................................10

2.2 Product Description...................................................................................10

2.2.1 Connectors...........................................................................................11

2.2.1.1 A - Supply Connector..................................................................12

2.2.1.2 B - General Purpose Inputs/Outputs...........................................13

2.2.1.3 C - Synchronization Interface .....................................................14

2.2.1.4 D - Carrier Phase Synchronization Interface ..............................15

2.2.1.5 E - Open Collector & I/Os ...........................................................16

2.2.1.6 F1 & F2 - RS232 Communication Interface................................17

2.2.1.7 G - RS422/RS485 Communications Interface............................18

2.2.1.8 H - Indicator Outputs...................................................................19

2.2.1.9 I - Antenna Connector.................................................................19

2.2.2 Switches...............................................................................................20

2.2.3 Indicators..............................................................................................22

2.2.4 Potentiometers.....................................................................................22

2.2.4.1 RF Power Adjustment.................................................................22

2.2.4.2 EMI / Sync. Level Adjustment.....................................................22

2.3 Mechanical Information.............................................................................22