Nortel Networks Circuit Card User Manual

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Page 58 of 906
 Overview
Nortel has tested line protection devices from three manufacturers. See 
Table 6. Each manufacturer offers devices for protection of digital as well as 
analog telephone lines.
These devices are compatible with 66 type M1-50 split blocks or equivalent. 
Consult the device manufacturer if more specific compatibility information is 
required.
Line protection grounding
In conjunction with line protectors, proper system (PBX) grounding is 
essential to minimize equipment damage. Nortel recommends following the 
Table 6
Line protection device ordering information
Device order code
Analog
Line
Digital
Line
Manufacturer
UP2S-235
UP2S-75
ITW Linx Communication
201 Scott Street
Elk Grove Village, IL 60007
(708) 952-8844 or (800) 336-5469
6AP
6DP
Oneac Corporation
27944 North Bradley Road
Libertyville, IL 60048-9700
(800) 553-7166 or (800) 327-8801 x555
ESP-200
ESP-050
EDCO Inc. of Florida
1805 N.E. 19th Avenue
P.O. Box 1778
Ocala, FL 34478
(904) 732-3029 or (800) 648-4076