ADTRAN 1248 - Manual (Page 21)

Description
61179641AL4-5B 1-5
CAUTION
Per GR-1089-CORE the Total Access 1248 is designed and
intended for installation as part of a Common Bonding Network
(CBN). The Total Access 1248 is not designed nor intended for
installation as part of an Isolated Bonding Network (IBN).
CAUTION
Per GR-1089-CORE Section 9, the Total Access 1248 is intended to
be deployed in either a DC-C (common) or DC-I (isolated) installa-
tion of the Total Access 1248.
CAUTION
The Total Access 1248 Chassis frame ground terminal must be
connected to a reliable earth ground.
CAUTION
Connect to a reliably grounded –48 VDC source which is electri-
cally isolated from the AC source. The branch circuit overcurrent
protection shall be a fuse or circuit breaker rated minimum
48
VDC, maximum 3 A.
NOTE
The POTS and ADSL+POTS ports are classified as Type 1, 3, and 5
as defined in Appendix B of GR-1089-CORE, Issue 4 and meets the
lightning and power fault criteria with any primary protector that
meets any of the voltage limits of GR-974-CORE or GR-1361-CORE
(i.e., carbon blocks, gas tubes, solid states, etc.). Solid-state
primary protectors are not recommended as they could affect the
signal integrity of the ADSL.
NOTE
Current limiting protectors are not required.