| Reliance Comm/Tec, Product brochure. |
| GTE Sylvania Product drawing (2 pages). |
| TII Industries, Inc., Product brochure. |
| BEJED Product brochure. |
| Northern Telecom Product brochure. |
| AMP, Inc. Product drawing. |
| Lippincott Ind. Inc. Product brochure. |
| AT&T Product brochure. |
| GTE Sylvania Product brochure (2 pages). |
| Lippincott Ind. Inc. Product brochure. |
| Siecor CAC Equipment Product brochure (2 pages). |
| TII Network Interface advertisement from Mar. of 1983. |
| TII brochure re TII 755, 756 and 757, Network Interface Devices. |
| Sylvania brochure re CP800 Network Interface Device. |
| AT&T brochure re the 200 Network Interface Unit. |
| AT&T brochure re Network Terminating Systems. |
| General Cable Co. brochure re SPD.sub.2 Network Interface. |
| Northern Telecom brochure for Multifunction protector. |
| Siecor product brochure re CAC 1000 Network Interface. |
| AMP brochure for NID Connector (see U.S. Pat. No. 4,500,158 to Dola, above. |
| Lippincott brochure for GL500 Network Interface Device. |