Manual

1779KP5 Troubleshooting Tools
Chapter 6
62
This
Board: Catalog Number: Provides a Link to:
Power Supply 1779PH2 The Power Source for Y our Module
MAC 1779JMA/1779JMAR The Data Highway II Network
Host 1779JP5 The Data Highway Plus Network
The Power-Supply Board and MAC board are the same boards that you
use for the other Data Highway II modules (except the 1779-KP3). This
means that you do not need to keep a different type of spare
Power-Supply Board or MAC board for each interface on your network.
For more information on replacing the circuit boards inside your
1779-KP5, refer to the Data Highway II Replacement Boards Product
Data (Publication 1779-2.8).
Figure 6.2 shows the LED indicators on the front panel of the 1779-KP5
module. These indicators can help you in diagnosing problems with the
module’s installation and operation.
Figure 6.2
The
LED Indicators
MSD
LINK
ADDRESS
EXIT
COMPLETE
EXIT
REQUEST
G IN RING
Y SEEKING MEM
DUP
ADDR
PORT READY
SIG QUAL
DC POWER ON
AC POWER ON
DATA
HWY II
PORT
MAC FAULT
MAC TEST
NODE PASS
HOST FAULT
NODE TEST
TEST
RUN
RESET
ACTIVITY
SAT
TRANSMIT
RECEIVE
READY
ERROR
16016
PORT READY
SIG QUAL
DATA
HWY
II
PORT
1
2
REDUN WARN
LEDs
LEDs
LEDs
LEDs
LEDs
LEDs
LEDs
LEDs
Using the LED Indicators