GAI-Tronics 227-001 Auto-dial Telephones - Manual (Page 9)

Pub. 42004-338F
Model 227-001, 247-001, 257-001, and 277-001 Industrial Auto-dial Telephones Page 9 of 19
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7. If mounted outdoors, install a telephone line suppressor (customer-supplied) on the telephone line.
8. Connect the telephone cord to the PCBA terminal strip. See Figure 7 for details.
9. Close the front half of the enclosure and secure it by replacing the four outermost screws.
10. Connect the telephone’s modular cord to the incoming subscriber line with the appropriate mating
connector. Verify operation by calling to and from another telephone.
Figure 10. Model 257-001 Mounting Detail