RAD Data comm Modular Access Device with Integrated Router, E1/T1 General Troubleshooting

Chapter 6

Troubleshooting and

Diagnostics

This chapter includes:

•General troubleshooting (see Table 6-1)

•E1, T1 and voice troubleshooting (see Table 6-2)

•Router connections troubleshooting (see Table 6-3).

6.1 General Troubleshooting

Table 6-1. General Troubleshooting

Trouble symptoms	Possible cause	Recommended Course of Action
All front panel indicators are	The unit is not receiving power	Check that power is supplied to the unit.
OFF		Check the fuse and replace it if necessary.
READY indication is OFF	There are less then two	Check VIEW interface connection status
	interfaces UP

6.2 E1/T1 and Voice Troubleshooting

Table 6-2. E1, T1 and Voice Troubleshooting

Trouble symptoms	Possible cause	Recommended Course of Action
Local sync loss (for E1) or RED	External problem	Check the E1/T1 cable.
alarm (for T1) indicator is ON
in the main link
Local sync loss (for E1) or RED	External problem	Check the E1/T1 cable.
alarm (for T1) indicator is ON
in a sub link
SHDSL status remains in	SHDSL and/or E1	• Check that SHDSL parameters of
‘handshake’ or ‘training’ mode	configuration problem	the local and remote units are set
		to the same values.
		• Check that the same number of
		timeslots are configured to carry
		data.

E1/T1 and Voice Troubleshooting 6-1