Ports | Port Labels | Card Description |
 | CE0, CE1, CE2 | 6611-A47 Serial/Ethernet Comb. Adpt. |
 | CT0, CT1, CT2 | 6611-A47 Serial/Token-Ring Comb. Adpt. |
 | TE0 | 6611-A47 1-Port Ethernet Adapter |
 | DE0, DE1 | 6611-A47 2-Port Ethernet Adapter |
 | 0, 1, 3, 2 | 6611 4-Port SDLC Adapter |
 | TO0, TO1 | 6611-A47 2-Port Serial Adapter |
 | D0, D1, D2, D3 | 6611-A47 4-Port Serial Adapter |
 | TK0 | 6611-A47 1-Port Token-Ring Net 16/4 Adpt. |
 | DT0, DT1 | 6611-A47 2-Port Token-Ring Net 16/4 Adpt. |
 | XT0 | 6611 X.25 Adapter |
– | | |
 | CE0, CE1, CE2 | 6611-A25 Serial/Ethernet Comb. Adpt. |
 | CT0, CT1, CT2 | 6611-A25 Serial/Token-Ring Comb. Adpt. |
 | TE0 | 6611 Ethernet Adapater |
 | TE0 | 6611-A25 1-Port Ethernet Adapater |
 | DE0, DE1 | 6611-A25 2-Port Ethernet Adapater |
 | 0,1,3,2 | 6611 4-Port SDLC Adapter |
 | TO0, TO1 | 6611 2-Port Serial Adapter |
 | TO0, TO1 | 6611-A25 2-Port Serial Adapter |
 | DO0, DO1, DO2, DO3 | 6611-A25 4-Port Serial Adapter |
 | TK0 | 6611 Token-Ring Network 16/4 Adapater |
 | TK0 | 6611-A25 Token-Ring Net. 15/4 Adpt. |
 | DT0, DT1 | 6611-A25 2-Port Token-Ring Net. 16/4 Adpt. |
 | XT0 | 6611 X.25 Adapter |