Fddi Network Processor Module Led Indicators; Figure 4-10 Dual-Attachment Single-Mode Fddi Module-End View - Cisco EF4116 Hardware Installation And Maintenance Manual

The convention used here to indicate corresponding signals for DTE/DCE is to list DTE first. For
example, Figure 4-9 shows the top LED, D0, indicates TXD in DTE mode or RXD in DCE mode.
The dual serial port network processor module LED Indicators are explained in Table 4-2.
Table 4-2
Serial LED Card Outer Labels
DO
TXC
DI
RXC
DCD
RS
TS1
TS2
LP
DCE

FDDI Network Processor Module LED Indicators

Dual-attachment FDDI network processor modules have one LED per port, located adjacent to the
corresponding port on the module panel (see Figure 4-10 and Figure 4-11), while single-attachment
modules have one LED, located adjacent to the single port on the module panel. (See Figure 4-12.)
Figure 4-10
Alignment groove
Dual Serial Network Processor Module LED Indicators
Indication (DTE/DCE)
Data Out (TXD/RXD)
Transmit Clock
Data In (RXD/TXD)
Receive Clock
Data Carrier Detect
Receive Signaling
Transmit Signaling
Transmit Signaling
Loop
Lit if network processor module is DCE
Dual-Attachment Single-Mode FDDI Module—End View
PHY-B
FDDI WARNING
PHY–B
RING OP
XMTR PHY-A RCVR
PHY–A
RING OP
Mounting
screw locations
Reading Network Processor Module LED Indicators
AVOID EXPOSURE–INVISIBLE
LASER RADIATION IS EMITTED
FROM THESE APERTURES.
1300
NM
CLASS 1 LASER PRODUCT
LASERKLASSE 1
CISCO SYSTEMS, INC.
170 WEST TASMAN DRIVE
SAN JOSE, CA 95134-1706
DATE:
"Complies with FDA Radiation
Performance Standards, 21 CFR,
Subchapter J"
Alignment groove
Troubleshooting the Initial Hardware Configuration 4-9