Filter
Top Products
Connecting to the PSTN 23
SmartNode 10200 Series User Manual 2 • Hardware Installation
SCSI Interface (T1/E1)
A SN10200-xxE with 4 SCSI connectors enables the connection to T1/E1 lines. The termination impedance is
set at 120 ohms. It is possible to connect an external balun in order to convert to 75 ohms (Figure 6).
Note
All ports may not be active. T1/E1 ports are activated by software license;
the number of active ports depends on the licenses purchased.
To connect the SN10200 (SCSI) to the PSTN:
1. Start with the SCSI ports 0-15 located at the bottom right as shown in Figure 6. Connect one SCSI cable
between this port and SCSI patch panel number 1, ports 0-15. Connect SCSI ports 16-31 to patch panel
number 1, ports 16-31.
2. Repeat step 1, using lines 32-63 and a second patch panel. Connect lines 32-47 to patch panel 2, ports 0-
15. Connect lines 48-63 to patch panel 2, ports 16-31
Figure 6. SCSI interface to the PSTN
48-63
32-47
16-31
0-15
16-31
0-15
16-31
0-15
SCSI Patch Panel 1 (Rear)
SCSI Patch Panel 2 (Rear)
ETH VoIP SMP
0/0 0/1 0/0 0/1 0/0 0/1