17.2 DESCRIPTION
The RFL 93B FT/FR single width fiber optic transceiver module is shown in Figure 17-1. The module occupies
one dedicated module space in the front of the RFL 9300 chassis, and is used with a fiber optic I/O module that
is located at the rear of the chassis. The fiber optic I/O module selected for use with the RFL 93B FT/FR will
determine the fiber optic cable interface characteristics, such as wavelength, output level, and mating connector
type. All of the currently available single width fiber optic I/O modules are described in Section 18 of this man-
ual.
17.3 SPECIFICATIONS
As of the date this manual was published, the following specifications apply to all RFL 93B FT/FR single width
fiber optic transceiver modules, except where indicated. Because all RFL products undergo constant refinement
and improvement, these specifications are subject to change without notice.
Input Power Requirements (from chassis supply):
+5-Volt Supply: 120 mA
+15-Volt Supply: 10 mA
Input Signals:
P1-C15 TXCONTR: 5V CMOS
Controls one data selector inside the Actel. Logic 0 selects internal TX Data.
Logic 1 selects external TX Data.
P1-A15 STANDBY: 5V CMOS
Controls two data selectors inside the Actel. Logic 0 selects internal TX Clock
and RX Data. Logic 1 selects external TX Clock and RX Data.
P1-C18 TXCLK_IN: 5V CMOS
External TX Clock input.
P1-C21 RXD_IN: 5V CMOS
External RX Data input.
P1-A22 TXD_IN: 5V CMOS
External TX Data input.
P1-A10 TXDATA_A:
P1-C10 TXDATA_B:
RS422 TX Data input.
P1-A28 RECEIVE_DATA: 5V CMOS
Modulated RX Data from Fiber Head.
P1-A31 TX_ALARM: 5V CMOS
Alarm signal from Fiber Head TX section. Logic 1 TX is OK.
Logic 0, TX is malfunctioning
RFL 9300 RFL Electronics Inc.
May 1, 1998 17 - 2 (973) 334-3100
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