INSTALLATION OF TEMPORARY EQUIPMENT 



115 



2 CHARACTERISTICS OF THE 1-A SET 



The purpose of this set is to afford a field instrument that is self-contained, will 

 stand rough usage, receive both buzzer and bell signals, and be available for use with 

 either of the two standard portable telephones. In addition, space is secured for the 

 grounding and connecting devices, extra battery, and some small installation tools. 



The 1-A set is a shallow wooden box divided into two compartments of unequal 

 size. In the smaller compartment is mounted the following standard equipment: 1 

 extension bell, 1 protector, 1 howler, 1 condenser. 



The larger compartment is fitted with two binding-posts, from which wires lead 

 to the external connections on the set as shown in Fig. 68. 



rL /ne 



Prole do 



Connect a /Z75-A or IOO4--A 

 portable telephone of binding 

 posts A and B 



Ground) 



time 



g> 



Fig. GS Wiring diagram of the No. 1-A kit 



It is arranged so that either the 10'04-A or the 1375-A portable telephone may be 

 placed in it, connection being made to the above-mentioned binding-posts. Plenty of 

 space is left in this compartment for tools, connectors, etc., and a' suitable holder 

 provided for the ground rod. On the top and ends strong leather handles are attached 

 by which it may be lashed to a tree or other support as shown in Fig. 69. 



This set weighs 26 pounds complete with all equipment, including the 1375-A 

 telephone. With the 1G04-A set it weighs 19^ pounds. It may be placed on a table or 

 other suitable support if used indoors. The doors open downward and serve as a 

 writing shelf. 



Section 83 Temporary Connections to Permanent Lines 



The method of connecting emergency wire to permanent lines has been described 

 in Section 62. It frequently becomes necessary to make rapid connection with over- 

 head wires from the ground. Such connection must be made, for instance, when cutting 

 in on the line with any of the portable telephones previously described, and it is 

 essential that both connection and disconnection be made quickly without the necessity 

 for climbing poles or trees. To accomplish this some special apparatus has been devised. 



1 EMERGENCY CONNECTORS 



The type adopted by 'the Forestry Branch consists of two pieces of No. 18 stranded, 

 insulated wire, one of which is 25 ft. long and the other 8 ft. The former is provided 

 7921181 



