[GreenKeys] Information Pleeze

[Don Robert House]

The purpose of these devices are to be able to test the machine  
locally  by cutting off the local cable pair and powering everything  
from a local supply.  It also allowed the operator to pre-cut tapes  
even when the loop or toll circuit might be out of service.

Don K9TTY

Ex Teletype repairman
Illinois Bell Telephone Co.
78 E. Dundee Road  (now a parking lot)
Wheeling, Illinois


On 14 Nov 2005, at 4:20 PM, Larry Tighe wrote:

Howdy Folks,

Can someone tell me the purpose of the "line shunt relay" and the  
"line test" switch in the Model 28ASR?

Many thanks,


Larry
www.antiquetelephone.com
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