what is tel cylinder?

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The TEL option is only available on the 4010, 4020, and the 4110 series closers. The 4041/4040XP is not available with TEL (telephone closer). 
You can contact Allegion Customer Service (Sales Support) or Technical Support (Product Support) by phone or by email. To contact by phone: call 877.67...
NOTE: You can also reach your local sales office by dialing 877-671-7011 and selecting option #3 from the main menu. You will be directed to your sales office based on the area code ...
Unless otherwise specified on an order, the cam supplied on Falcon mortise cylinders will be the following: Non-IC mortise cylinder is the 5622-STD. IC mortise cylinder is the 5622-IC. Related...
Cams for other applications may be specified with no additional charge, see pricebook.
Backset dimensions will vary depending on the device, application and the opening configuration. If you have questions on specific device backsets, please e-mail your request (including a descripti...