ONEAC OnLine 6-Series Communication Line Protector
Leading telecommunications companies employ ONEAC Sentinel communication line protectors in their installations for good reason: because Sentinel protectors provide greater assurance of PBX and key system uptime and lower service costs than conventional protectors.
For Digital or ISDN Service
For use with type 66 block M1-50, 6-Series communication line protectors eliminate the possibility for noise generated on outside telephone lines to enter internal communication circuits.