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2 INSTALLATION
2.1 GENERAL
This section contains detailed information on the installation and initial checkout of the
F271XA Telephone Modem. Section 2.2 contains general information on site selection and
mounting. Section 2.3 contains the description for selecting different options on the modem.
Sections 2.4 and 2.5 contain detailed instructions for connecting Model F271XA products to
your system. Section 2.6 contains initial checkout procedures.
2.2 SITE SELECTION AND MOUNTING
The Model F271XA products are designed to be used as an interface extender for analog
subscriber (phone handset) lines. When connecting the F271XA to a system, the copper and fiber-
optic cable should be securely installed so as to prevent accidental disconnection. Care should be
taken to ensure that the copper and fiber-optic cables are not mechanically separated from the
modem during operation. When installed in either desktop chassis or in the dual-card rack-mount
chassis, space for the power transformer must also be provided.
2.3 SWITCH AND JUMPER SETTINGS
There is one set of switches and two jumpers provided for configuration of selectable
options. Switch and jumper locations are shown in Figure 3. Switch and jumper settings are as
follows:
2.3.1
Modem Configuration Settings
The F271XA has one user selectable configuration setting. For ring-down operations (i.e.
subscriber to subscriber) SW1-1 is set to the 'ON' position. In the 'OFF' position the subscriber
card will be set for normal operation.
Table 3: SW1 Switch Settings
Position
On
Off
SW1-1
Ring-down Operation
Normal Operation
SW1-2
Factory setting
*
SW1-3
Factory setting
*
SW1-4
Factory setting
*
SW1-5
Factory setting
*
SW1-6
Factory setting
*
SW1-7
Factory setting
*
SW1-8
Factory setting
*
* Note: Factory settings as indicated. Do Not Change.
