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Wiring and Configuration
Identfying
M-Modules
WARNING
Caution
Caution
This section describes how to connect user wiring to each of the three Switch
M-Modules. It also describes how to configure the HP E2272A as a dual
8-to-1 or a single 16-to-1 multiplexer.
Note
The procedures in this section assume the M-Module(s) have already been
installed into an M-Module Carrier. Since installation is dependent on the
carrier used, instructions for installing M-Modules into the carrier are not
included here. Refer to your M-Module carrier documentation for
installation instructions. Each Hewlett-Packard M-Module is shipped with
identifying labels that you should install on the carrier.
The Switch M-Modules have a module ID number printed on the PC-board.
The ID number consists of a model number prefix/PC-board number suffix.
For example, "E2270-66501" is the ID number for the HP E2270
M-Module. ID number locations are shown in Figures 1-2, 1-3, and 1-4.
SHOCK HAZARD. Only service-trained personnel who are
aware of the hazards involved should install, remove, or
configure the modules. Before installing or removing any
module or carrier, disconnect power from the mainframe and
user wiring.
MAXIMUM VOLTAGE/CURRENT. The maximum voltage that
may be applied to any connector on the HP E2270A, E2271A, or
E2272A is 200 VDC, 125 VAC rms, or 175 VAC peak. These
limits apply only if the product is installed in a
humidity-controlled (<60% RH) environment where airborne
contaminants and transients are controlled, and NO relay
connection is made to power mains. If these conditions
CANNOT be maintained, then the maximum voltage is 60 VDC,
48 VAC-rms or 68 VAC-peak.
The maximum current (non-inductive) that may be appied to the
HP E2270A, E2271A, or E2272A is:
Per Switch: 2 ADC, 2 AAC peak
Per Module: 8 ADC, 8 AAC peak
STATIC ELECTRICITY. Static electricity is a major cause of
component failure. To prevent damage to the electrical
components on an M-Module or the carrier, observe anti-static
techniques whenever installing, removing, or working on a
carrier or M-Module.
Getting Started
13
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