Equipment Connections
15
2.5.3
SCSI Interface (T1/E1/J1)
A TMG3200 with 4 SCSI connectors enables the connection to T1/E1/J1 lines. The termination
impedance is set at 120 ohms. It is possible to connect an external balun in order to convert to 75 ohms.
See figure 2.6 on page 16
Note
All ports may not be active. T1/E1/J1 ports are activated by software license; the number
of active ports depends on the licenses purchased.
To connect the TMG3200 (SCSI) to the PSTN:
1. Start with the SCSI ports 1-16 located at the bottom right as shown in figure 2.6 on page 16.
Connect one SCSI cable between this port and SCSI patch panel number 1, ports 1-16. Connect
SCSI ports 17-32 to patch panel number 1, ports 17-32.
2. Repeat step 1, using lines 33-64 and a second patch panel. Connect lines 33-48 to patch panel 2,
port 1-16. Connect lines 49-64 to patch panel 2, ports 17-32.
