6
1.2 Rear Panel
Port positions at the rear panel may differ depending on the actual product. For details about the
alarm port, see "1.3 Alarm Port".
1.2.1 VTH2421F Series
Figure 1-8 Rear panel
Table 1-3 Rear panel description
No. Port
1 Alarm port
2 Debug port
3 Network port
4 Power port