61
Maxim Integrated
Evaluates: DS34S132
DS34S132 Evaluation Kit
Table 5-8. Troubleshooting Chart
FAULT
PROBABLE CAUSE
CORRECTIVE ACTIONS
The E1/T1 equipment
connected to EV kit is not
synchronized (E1/T1 level)
with the EV kit.
Configuration problems
Check the EV kit port configuration.
Slips and errors in E1/T1
equipment.
—
Check E1/T1 alarms to indicate the exact cause.
Ethernet port is set to work in half-duplex
mode (can cause extreme PDV because
of collisions and back-offs).
Ethernet ports of the local and remote
devices are not set to the auto negotiation
mode or set to different rates.
Check the EV kit port configuration (autonegotiation,
rate, duplex mode) and check Ethernet PM.
Timing configuration is not properly set
(periodic buffer under/overflows—bundle
connection status menu).
Check the timing settings.
Network PDV or lost frames
Check PDV introduced by the network, and, if nec-
essary, increase differential time (PDVT) setting.
Echo in voice.
End-to-end delay is too large
Check network delay and try to decrease it. Try to
decrease differential time (PDVT).
Decrease Ethernet packet size by changing bundle
configuration.
Ethernet interface LINK
indicator is not lit.
No active station on the LAN
Check that at least one station is active on the LAN.
Cable problem
Check and replace, if necessary, the cable that con-
nects the EV kit UPLINK connector to the LAN.
Problem on the LAN
Check LAN media.
Defective EV kit
Replace the EV kit if a failure is detected.