
Product Specification Sheet APS693 - Rev. 07/2013
SF401EX Strain Relief Cable / Extender (8-pin DIN type)SF401EX Strain Relief Cable / Extender (8-pin DIN type)
387 CANAL STREET • NEW YORK • NY • 10013-1615 • Phone: 212-431-5066 • Fax: 212-431-5422387 CANAL STREET • NEW YORK • NY • 10013-1615 • Phone: 212-431-5066 • Fax: 212-431-5422
Web: www.canalalarm.comWeb: www.canalalarm.com
Copyright © 1998-2 017 Alpha Communication s® - All Righ ts Reserved.
Due to c ontinuo us product i mprovement, all col ors, sizes, materials, finishes and sp ecifications are subject to change witho ut not ice.
SpecificationsSpecifications
Length: 6.0" (153mm) 
Construction:
24-gauge polyvinylcovered cord 
with molded ends 
(Male/Female)
Connections:
 Connections: 8-pin 
'DIN' plugs
SF401EX Strain Relief CableSF401EX Strain Relief Cable
The Alpha Communicat ions® / TekTone SF401EX Strain Relief Cable is used to increase the 
life span of c all cords, pillow speakers and room stations. T he c able is placed between the 
call c ord or pillow speaker and the room stat ion. 
If the call cord or pillow speaker is att ac hed to a bed and then t he bed is pulled away, 
the strain relief c able disconnect s. T his prevents damage to both the room station and the 
call c ord or pillow speaker.
The SF401EX is typically used with the NC300 , NC300II and TC400 nurse-call syst ems 
where an 8-pin 'DIN' type jac k is used at the patient bed station(s). Typically they are used 
with the IR319B, IR320B, IR411, IR411EPB, IR412, and IR412EPB or similar patient stations.
FeaturesFeatures
UL 1069 Listed 
Molded connec tors 
Clean break-away act ion 
Increase life of call cords, pillow speakers and room stat ions
Architects' And Engineers' SpecificationsArchitects' And Engineers' Specifications
The strain relief c able(s) shall be Alpha Communications® / TekTone model SF401EX or 
approved equal.
The SF401EX shall be plugged into an Alpha Communications® / TekTone c all cord or 
pillow speaker and then into a room st ation t o provide break-away action when st ressed. 
The strain relief c able shall be approximately 6", and shall be terminated with one mail 'DIN' 
connector and one female 'DIN' connec tor. The c onnec tor ends shall be molded t o provide 
durability. A c ord-out shall report at the annunciator(s)/master station(s) if t he c able is 
disconnected at either end.
The SF401EX shall be UL 1069 listed.