Adsl2+ Plus Pots Connections; Pots Interface; Adsl2+ Plus Pots Interface; Figure 3-10. Total Access 1248 Pots And Adsl+Pots Connections - ADTRAN Quad T1 IMA Installation And Maintenance Practice

Total Access 1248 Quad T1 IMA 48-Port DSLAM with Modem Installation and Maintenance Practice

ADSL2+ Plus POTS Connections

The Total Access 1248 utilizes four 25-pair amphenol connectors (see
used as follows:
• Two amphenols for connection to the POTS pairs
• Two amphenols for connection to the ADSL2+ plus POTS pairs
TOP:POTS BOTTOM: ADSL+POTS

Figure 3-10. Total Access 1248 POTS and ADSL+POTS Connections

POTS Interface

Each POTS interface on the Total Access 1248 accepts a POTS signal from the CO and passes
it through to the ADSL2+ plus POTS interface for delivery to the subscriber. POTS service is
not affected by loss of power to the unit.

ADSL2+ Plus POTS Interface

Each ADSL2+ plus POTS interface provides transport for standard POTS from the Central
Office (CO) to the customer. The frequency ranges for Total Access 1248 deployment are as
follows:
• POTS accommodates frequency ranges up to 4 kHz
• ADSL and ADSL2 accommodates frequency ranges up to 1.1 MHz
• ADSL2+ accommodates frequency ranges up to 2.2 MHz
Any analog devices connected to this interface must use a low-pass filter to prevent high
frequencies from interfering with the device.
3-14
PORTS 1-24 TOP:POTS
1179641AL1
R
M
T1/E1
BOTTOM: ADSL+POTS PORTS 25-48
Figure 3-10), which are
-48V RET -48V RET
EXPANSION
ETHERNET
USE COPPER CONDUCTORS ONLY!
OUT
-48V .....,5.0A . .
61179641AL1-5C
FAN MODULE
1179675L1