AT&T MERLIN LEGEND Release 2.0 Installation Section page 192

Connecting the Control Unit to the Network Interface
Test Ground-Stat Trunks
To perform this test, you need a single-line telephone with a ground key or a
ground-start button.
NOTE:
If a single-line telephone with a ground key (or ground-start button) is not
available, ground one side of a trunk.
1. Plug the single-line telephone into each central office trunk jack (either
at the network interface or at the cross-connect field).
2.
Pick up the handset.
You should hear a dial tone.
Ground the ring lead by pushing the ground key (or button) or by
3.
grounding one side of the trunk.
4.
Remove the ground from the ring lead.
5.
Dial a known telephone number to verify dialing.
Also, check that you have good two-way transmission after the central
office completes the connection.
6. If you find a central office trunk that does not have a dial tone, check
for a bad adapter or loose connections.
7.
If adapters and wiring are in working order but you still don't hear a dial
tone, notify the customer.
8. If outward dialing is not possible on any of the trunks, notify the
customer.
NOTE:
It is the customer's responsibility to report service outages to the
local telephone company.
Testing Trunks
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