DH+/RIO OPTICAL COMMUNICATION MODULES USERS MANUAL
Copyright © 2003 by Phoenix Digital Corporation, All Rights Reserved.
See Table 12 for corresponding values of RSS Voltage Out vs Receive Optical Power-In at both
the 850nm and 1300 nm wavelengths (multimode only).
RSS V (OUT)
(1)
OPTICAL POWER IN OPTICAL POWER IN
(dbm @ 850nm, (dbm @ 1300nm,
MULTIMODE) MULTIMODE)
3.5 -18.0 -20.0
3.0 -18.6 -21.0
2.5 -19.4 -21.9
2.0 -20.4 -23.3
1.5 -22.0 -24.5
1.0 -24.0 -27.0
0.5 -28.0 -33.0
0.3 -33.2
(1) Proportional Accuracy: +/- .3 volt
NETWORK OPTICAL POWER-IN VERSUS RSS VOLTAGE-OUT (ANALOG)
TABLE 12
RSS Return connection is provided on the Standalone, Panelmount OCM J1 connector (Pin #2...
RSS Signal Ground), and on the 1746 Plug-In OLC and 1756 Plug-In OCX Test Jacks directly
adjacent to the Signal Ground symbol on the lower front of the module. It is recommended that
RSS Return/Signal Ground be used as the common mode reference for RSS analysis. (It can also
be used as the negative signal reference for differential analysis of RSS.)
Since the RSS diagnostic outputs are active outputs the user must insure electrical compatibility be-
fore connection to any external device. (Note: Optical Power Metering is only available on 850 nm
and 1300 nm multimode fiber optic modules with the “-D” diagnostic option.)
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