Grandstream Networks UCM6510 - Connecting T1 Port; Figure 2: UCM6510 Front View; Figure 3: T1 Crossover Cable Pin-Out

How to Configure T1 Trunk on UCM6510 Page 4 of 17
1. CONNECTING T1 PORT
The following figure shows the UCM6510 front view where you can see the T1/E1/J1 port.
Figure 2: UCM6510 Front View
Use a T1 crossover cable to plug one end into the UCM6510 T1/E1/J1 port. Plug the other end into the
T1/E1/J1 walljack. Please check if the T1 crossover cable can be provided from the service provider. The
proper T1 crossover cable pin-out is shown in the following figure.
Figure 3: T1 Crossover Cable Pin-out