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V.35/eia-232 interface – Northern UTA220/UTA220k User Manual

Page 27

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UTA220/UTA220k

3-3

Getting Started

(Figure 3-3).

Figure 3-3. Strap and Switch Locations

V.35/EIA-232 Interface

The V.35/EIA-232 interface cards can conform to V.35
(factory) or EIA-232 D/E by means of two slide switches and
a DIP switch. Slide the switches toward the front of the
UTA220 to select V.35 and toward the rear of the UTA220 to
select EIA-232 D/E (Figure 3-4).

To complete the selection of EIA-232 D/E, set the DIP switch
as indicated in Table 3-1. The following sections describe how
to change DIP switch settings.

Table 3-1:

DIP Switch Settings for EIA232 D/E Operation

DIP Switch Position

1

2

3

4

OFF

OFF

ON

ON