3Com 3C13755-US - Router 5642 Installation Manual page 22

20 C 2: I R 5012 SIC
HAPTER NTRODUCING OUTER S
Figure 18 illustrates the 2-port ISDN S/T SIC.
Figure 18 The 2-Port ISDN S/T SIC
Figure 19 illustrates the 2-port ISDN U SIC.
Figure 19 The 2-Port ISDN U SIC