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Figure 4-1.
Interchangeable
Interfaces
4. Data Interfaces
4.1 Data Interfaces Overview
A variety of interfaces are available for the 2240 Modem (see following listing).
RS-423 / 232
RS-449
RS-449 / RS-423 (MC1)
RS-530
TwinAx 422
Twinaxial Mil-Std 188-114C
Each conforms to existing standards. Refer to Section 7, "Specifications," for
applicable standards/physical connector types. Refer to Section 7.5, "2240 Fiber
Optic Modem Configurations," for a list of available interface options.
In general, all interface modules are configured as Data Communications
Equipment (DCE). All devices supports a variety of control leads and auxiliary
channels. The 2240 provides these signals as end-to-end paths. See each
respective section for a general description of interface features. Figure 4-1
shows the interchangeability of interfaces.
2240 Fiber Optic Modem
CCITT V.35
Transparent T1 / E1
CCITT V.35 / RS-423 (MC2)
Programmable RS-530
TTL / BNC
DC-37 Mil-Std 188-114
41
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