22.2 SHORT HAUL FIBER INTERFACE MODULE
22.2.1 DESCRIPTION
The RFL 93 Short Haul Fiber Interface module (Figure 22-1a) is housed in a single 1.4 inch wide module, and
can be installed in either one of the two right-most slots at the rear of the 9300 chassis. The module consists of
an input section (detector) and an output section (emitter). Table 22-1 contains general information related to
the RFL 93 Short Haul Fiber Interface module.
Table 22-1. General Information, Short Haul Fiber Interface Module
Assembly
Number
Type
Wavelength/Mode
Connector
Type
Receiver
Sensivity
Tx Level
(Min)
Typical
Distance
107500 LED Emitter/Detector 830 (+/-40 nm) multimode ST -32dBm to-11dBm -19dBm
(62.5μm)
Up to 2km
(1.2mi) using
50μm or 62.5μm
core diameter
optical fiber
22.2.2 SPECIFICATIONS
As of the date this manual was published, the following specifications apply to the RFL SHF Short Haul Fiber
Interface module, except where indicated. Because all RFL products undergo constant refinement and im-
provement, these specifications are subject to change without notice.
IEEE Standard: C37.94 for N times 64 kilobit per second Optical Fiber Interfaces between teleprotection and
multiplexer equipment.
Input Power Requirements (from chassis supply):
+5-Volt Supply: 175 mA (max)
Input Drive Signals: TTL logic-level control signals from Communications Controller module.
Receiver Sensitivity: See Table 22-1.
Tx Level: See Table 22-1.
Temperature:
Operating: -30
O
C to +60
O
C (-22
O
F to +140
O
F).
Relative Humidity: 90 percent, non-condensing @ 40
o
C.
Dimensions:
Width (including panel) 1.4 inches (3.6 cm)
Height (including panel) 5 inches (12.7 cm)
Depth (behind panel) 4.7 inches (12.0 cm)
RFL 9300 RFL Electronics Inc.
October 20, 2004 22 - 3 (973) 334-3100