Front Panel  15
PIM Summary
Figure 4 shows the slot numbering on an SSG 520M device. Table 4 shows the PIM 
types you can install in the slots of an SSG 520M device. The E located on some of 
the slots identifies where the enhanced PIMs (EPIMs) can be installed.
Figure 4:  SSG 520M Slot Location
Table 4:  PIM Slots, SSG 520M
Figure 5 shows the slot numbering on an SSG 550M device. Table 5 shows the PIM 
types you can install in the slots of an SSG 550M device. The E located on some of 
the slots identifies where the enhanced PIMs (EPIMs) can be installed.
Figure 5:  SSG 550M Slot Location
Table 5:  PIM Slots, SSG 550M
CAUTION: PIMs are not hot-swappable. PIMs must be installed in the front panel 
slots before the device is started.
Slot PIM Types Slot PIM Types
1 WAN Connectivity (PIM only)
Serial, T1/E1, DS3
4 WAN Connectivity (PIM only)
Serial, T1/E1, DS3
2 WAN Connectivity (PIM only)
Serial, T1/E1, DS3
5 WAN Connectivity (PIM only)
Serial, T1/E1, DS3
3 LAN or WAN Connectivity
(PIM or EPIM)
10/100/1000, SFP, 
FE Serial, T1/E1, DS3
6 LAN or WAN Connectivity
(PIM or EPIM)
10/100/1000, SFP, 
FE Serial, T1/E1, DS3
Slot PIM Types Slot PIM Types
1 WAN Connectivity (PIM only)
Serial, T1/E1, DS3
4 WAN Connectivity (PIM only)
Serial, T1/E1, DS3
2 LAN or WAN Connectivity
(PIM or EPIM)
10/100/1000, SFP, 
FE Serial, T1/E1, DS3
5 LAN or WAN Connectivity
(PIM or EPIM)
10/100/1000, SFP, 
FE Serial, T1/E1, DS3
3 LAN or WAN Connectivity
(PIM or EPIM)
10/100/1000, SFP, 
FE Serial, T1/E1, DS3
6 LAN or WAN Connectivity
(PIM or EPIM)
10/100/1000, SFP, 
FE Serial, T1/E1, DS3
SSG
520M
SSG
550M