VES-1000 Series Ethernet Switch
6-4 Hardware Troubleshooting
Figure 6-1 Testing In-house Wiring on a VES-1012
Figure 6-1 applies to the VES-1012 only. The testing logic remains the same for the VES-1008 however the only
exception is that the VES-1008 has a combined Telco-50 connector. The following test procedures can also be
applied to the VES-1008; however, the tester will need to configure one separate cable to plug into the single
Telco-50 connector is on the VES-1008 instead of two cables for the VES-1012.
Table 6-5 Testing Wiring on a VES-1008
STEP TEST
A Connect a standard telephone to MDF 1. If there is no dial tone, then a problem with the wire or wire
connections between MDF 1 and the CO exists. Contact your telephone company for troubleshooting.
B Remove the telephone cable(s) connecting MDF 1 and MDF 2. Connect a telephone to an upper port of
MDF 2. If there is no dial tone, then the problem is between the combined Telco-50 port on the VES-1008
and MDF 2. Replace the Telco cable connecting the CO port to MDF 2.
If the problem remains, check the pin assignments of the Telco-50 connector.
If the problem remains, then the VES-1008 or MDF 2 is faulty. Repeat the test in step A using MDF 2 to
determine if MDF 2 has problems. Contact the telephone company if that is the case.
If not, contact your VES-1008 vendor outlining the problem and the steps you took to solve it.
C Connect a telephone to a lower port of MDF 3. If there is no dial tone, then the problem is between the
combined Telco-50 port on the VES-1008 and MDF 3. Replace the Telco-50 cable connecting the VES-
1008 to MDF 3.
If the problem remains, check the pin assignments of the Telco-50 connector.
