![](http://pdfasset.owneriq.net/6/2b/62ba7e24-60bf-42be-a3c0-45b4dfb6d221/62ba7e24-60bf-42be-a3c0-45b4dfb6d221-bgfa.png)
Item Description
1 Four port FXS module
2 Two port FXO module
3 Expansion slot (FXO or FXS)
4 CPU module (see Figure 2 for an expanded view)
5 Expansion slot (power)
6 Power module
7 Expansion slot (FXO or FXS)
8 Expansion slot (FXO or FXS)
9 Expansion slot (FXO or FXS)
10 Connections module (see Figure 3 for an expanded view)
250 CHAPTER 9: INSTALLING DEVICES
Figure 2 CPU Module — Expanded View
2
3
4
5
6
1
7
8
Item Description
1 Locking screw
2 Dry contact ports (2)
3 Audio In/Out
4 10/100 Ethernet port (has activity and link status lights)
5 10/100 Ethernet port (has activity and link status lights)
6 RS-232 port
7 Locking screw
8 Reset button access (button is located behind the front panel)