DH+/RIO OPTICAL COMMUNICATION MODULES USERS MANUAL
Copyright © 2003 by Phoenix Digital Corporation, All Rights Reserved.
2-3
2.4.2 1746 OLCs AND 1756 OCXs (REFERENCE FIGURES 5 AND 6 FOR FIBER
OPTIC MODULE NOMENCLATURE AND DESIGNATIONS).
(i) Local Tx, Rx
- Illuminates flashing green when the tramsmit data output is active (transmit
data from the OLC/OCX Device Interface to the local device).
- Illuminates flashing yellow when the receive data input is active (transmit
data from the local device to the OLC/OCX Device Interface).
- Illuminates solid green when both the receive and transmit data inputs are
active (simultaneous transmit and receive data between the local device
and the OLC/OCX Device Interface).
(ii) OK... Module Without Diagnostic Option -
Illuminates continuous green when the OLC/OCX module is powered.
OK... 1746 OLC Module With Diagnostic Option -
Illuminates continuous green when the OLC module is powered.
OK... 1756 OCX Module With Diagnostic Option -
Illuminates flashing red when previously established communication
with the OCX I/O module slot has timed out.
Illuminates continuous red during reset condition.
Illuminates flashing green when the OCX I/O module slot is not
correctly configured, or is not actively controlled by a system processor.
Illuminates continuous green during normal operation.
(iii) Ch A, B AC/ER for OLC; Ch A, B ACT/ERR for OCX (Ch A, B Active/Error) -
Illuminates green when the corresponding optical network receive input is
receiving valid communications. Illuminates red when the corresponding
optical network receive input fails to detect valid communications.
(iv) Ch A, B ID/IF for OLC; Ch A, B ISD/IFD for OCX (ChA, B
Initial Signal Detect/Impending Failure Detect) - Illuminates green when the
corresponding optical network receive input is initialized for Impending Fault
Detection. Illuminates red when the corresponding optical network receive
input power level drops 3.0 decibel-milliwatts (optical) below the Initial Signal
Strength (see Section 1.3.3.7 for Initialization Procedure).
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