AT&T PARTNER II Release 3.1 Programming And Use Instructions page 261

Requirements for Installation of a telephone or other standard (tip/ring) device in another building requires the
following In-Range Out-of-Building (IROB) protectors to protect the control unit and device from
Out-of-Building
electrical surges:
Extensions
System phone: two AT&T IROB protectors
Standard device: one AT&T IROB protector plus carbon block protection
Wiring
System phones: AT&T SYSTIMAX® Bulk Nonplenum (DIW) cable, AT&T SYSTIMAX Bulk
Plenum (HALAR/HALAR) cable, or at least 2-pair (4-wire) star ("home run" not "loop")
Other standard telecommunications equipment (single-line phones, fax machines, answering
machines, etc.): 1-pair (2-wire) mounting cords (AT&T D2R mounting cords recommended)
Bridging adapter: AT&T 267F2
Range: 1,000 feet (305 meters) for system phones; 3,000 feet (915 meters) for standard devices
Safety
U.S.: Meets UL 1459 Issue 2
Requirements
Canada: Meets CSA C22.2, 225
Government
U.S.:
Approvals and
Local Phone
Company
Information
Canada:
FCC Part 68
FCC registration number (U.S.): AS5 USA-61630-KF-E
FCC Part 15 Class A
REN (outside line jack): 0.9A per line jack
Jack type: RJ11C
Loop start lines
DOC CP01, Issue 7
DOC registration number (Canada): 230 3756A
DOC CS03, Issues 6 & 7
Load Number = 7
Loop start lines
A-3
Specifications