User`s manual

Chapter 2
Configuring the Agilent E1346A Multiplexer
Module
Using This Chapter
This chapter shows how to connect external wiring to the 48-Channel Single
Ended Relay Multiplexer Module, and how to configure the module. This
chapter contains the following sections:
• Warnings and Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 17
• Connecting Field (user) Wiring . . . . . . . . . . . . . . . . . . . . . . . Page 18
• Wiring a Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 19
• Connecting the Analog Bus . . . . . . . . . . . . . . . . . . . . . . . . . . Page 21
• Setting the Address Switch . . . . . . . . . . . . . . . . . . . . . . . . . . Page 21
• Removing the Low-to-Guard Isolation Jumper. . . . . . . . . . . Page 21
• Selecting the Interrupt Priority . . . . . . . . . . . . . . . . . . . . . . . Page 23
Warnings and Cautions
Warning SHOCK HAZARD. Only service-trained personnel who are
aware of the hazards involved should install, remove, or
configure the multiplexer module. Before you install any
module, disconnect AC power from the mainframe and from
user wiring. To prevent electrical shock, all wires to the channel
connections must be insulated to at least 120 V rms (170 V
peak).
Caution MAXIMUM VOLTAGE/CURRENT. The maximum voltage that
may be applied between High (H), Low (L), and Guard (G)
terminals is 170 V dc or 120 V rms (170 V peak). The maximum
current is 50 mA (non-conductive) per channel.
STATIC ELECTRICITY. Static electricity is a major cause of
component failure. To prevent damage to the electrical components in the
multiplexer module, observe anti-static techniques whenever removing a
module from the mainframe or whenever working on a module.
Chapter 2 Configuring the Agilent E1346A Multiplexer Module 17