Adtran Network Cable, 1xCentronics, 1xCentronics, 5ft 3353004 产品宣传页
产品代码
3353004
P R O D U C T F E A T U R E S
■
Compatible with 2B1Q basic
rate services and standard
ISDN terminals
rate services and standard
ISDN terminals
■
Provides 2B+D basic rate services
■
Conforms to ANSI T1.601-1992
and ANSI T1.605-1991
and ANSI T1.605-1991
■
Supports multiple switch vendors
including LUCENT 5ESS
including LUCENT 5ESS
®
,
NTI DMS-100
™
■
Mounts in a Type 400 multi-mount
shelf or as a standalone unit
shelf or as a standalone unit
■
Supports S/T Bus powering
sources including phantom
power and dedicated pair
sources including phantom
power and dedicated pair
■
Provides automatic overcurrent
protection for S/T power
protection for S/T power
■
Supports US or European
standard configurations
(100
standard configurations
(100
Ω
or unterminated)
■
Allows long and short passive
bus arrangements
bus arrangements
■
Provides U-interface lightning
protection
protection
■
Standard 5 year warranty
NT1
T400
1212010
-READY
-ERROR
-POWER
U-Interface
Local Loop
TA
NT1
ISDN Phone
ISDN Switch
S/T BUS
Telephone Company Office
Customer Premises
NT1/T400
I S D N N E T W O R K T E R M I N A T I O N
The ADTRAN Type 400 NT1 provides network termination for the 2B1Q
basic rate interface between the customer terminal equipment and the ISDN
network. Basic Rate ISDN consists of two 64 kbps B channels and a single
16 kbps D channel. The U-interface is used for connection to the ISDN net-
work, while the S/T-interface is used for the subscriber terminal equipment.
The U- and S/T-interfaces conform to ANSI and CCITT standards and perform
all Layer 1 functions. The NT1 contains lightning protection circuitry to protect
from lightning and line transients on the network interface. Three LED status
indicators on the front panel aid in fault isolation.
network. Basic Rate ISDN consists of two 64 kbps B channels and a single
16 kbps D channel. The U-interface is used for connection to the ISDN net-
work, while the S/T-interface is used for the subscriber terminal equipment.
The U- and S/T-interfaces conform to ANSI and CCITT standards and perform
all Layer 1 functions. The NT1 contains lightning protection circuitry to protect
from lightning and line transients on the network interface. Three LED status
indicators on the front panel aid in fault isolation.
The NT1 operates as a standalone unit or in a multiple Type 400 mounting
such as the ADTRAN Type 400 Shelf, part number 1150028L1 or 1150024L1.
The NT1 monitors the S/T-interface for an overcurrent fault condition. In
the event of such a condition, the NT1 automatically limits the amount of
current being delivered until the fault condition is removed.
The NT1 monitors the S/T-interface for an overcurrent fault condition. In
the event of such a condition, the NT1 automatically limits the amount of
current being delivered until the fault condition is removed.
The S/T-interface may have as many as eight passive bus devices connected
to it as either multiple terminals within 50 meters of each other over the full
1,500 meter range of the interface, or multiple terminals of arbitrary spacing
within 200 meters. Termination impedance options include the US standard of
100
1,500 meter range of the interface, or multiple terminals of arbitrary spacing
within 200 meters. Termination impedance options include the US standard of
100
Ω
or the European unterminated configuration.