this is a system with 4 fxs ports
[1]
active=yes
alarms=OK
description=Wildcard TDM400P REV I Board 1
name=WCTDM/0
manufacturer=Digium
devicetype=Wildcard TDM400P REV I
location=PCI Bus 01 Slot 06
basechan=1
totchans=4
irq=12
type=analog
port=1,FXS
port=2,FXS
port=3,FXS
port=4,FXS

this is the other system with only fxo
[1]
active=yes
alarms=OK
description=Wildcard TDM400P REV I Board 1
name=WCTDM/0
manufacturer=Digium
devicetype=Wildcard TDM400P REV I
location=PCI Bus 00 Slot 11
basechan=1
totchans=4
irq=19
type=analog
port=1,FXO
port=2,none
port=3,none
port=4,none