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Compact T1 Network Facility Interface

Product Features

■ 

T1 line-conditioning and 
jitter tolerance per ANSI 
T1.403, T1.102 and AT&T 
TR 62411

■ 

Supports PRI 
pass through

■ 

Supports framed (B8ZS 
or AMI) or unframed 
signal formats

■ 

Transmits unframed
“all 1s” during signal loss 
from DTE or T1 network  

■ 

Bantam test jacks

■ 

Front panel status LEDs

■ 

12 VDC powered 

■ 

Desktop or wallmount

■ 

Industry-leading five-year 
North American warranty

The  ADTRAN

®

 T1 CSU ACE

 is a compact, 

full-featured T1 channel service unit used to 
connect T1 data terminal equipment (DTE) 
and T1 facilities.

 The unit is designed to 

provide alarms, loopbacks, signal regenera-
tion, line build out, and surge protection.

The transport signal maintains the framing 

format for both the WAN and customer inter-
faces and enables ISDN PRI pass through.

The unit is suitable for wallmounting 

or desktop use. Five LEDs on the front of 
the unit (POWER, SYNC, NETWORK LOS, 
NETWORK MANUAL and REMOTE LB,
EQ LOS, EQ MANUAL and REMOTE LB) 
display the status of the unit. On the back of 
the unit an eight position dip switch provides 
settings for customer premises equipment 
and network line build out (LBO) distances
as well as manual loopback operation. The
two network LBO switches provide four 
combination settings from 0 to 22.5dB in 
7.5dB increments. The three switches allotted 
for the equipment LBO offer five combination 
settings for PBX termination at distances up 

to 655 feet. Two additional switches provide 

for manual loopback (LB) in both the Equip-

ment (EQ) and Network (NET) directions.

The last switch is a spare.

The unit provides three bantam jack

pairs for testing purposes. Two pairs provide 

interruptive transmit and receive access 

toward the T1 network or the Data Terminal 

Equipment (DTE) device. The third pair is a 

non-interruptive connection for monitoring 

data flowing in either direction. Two RJ-48C 

modular jacks provide the network and DTE 

connections. A 12 VDC wallmount power 

supply that plugs into a receptacle is included 

with the unit. The T1 CSU ACE also supports 

wallmount applications via integrated 

keyholes in the base. 

For additional T1 applications, ADTRAN 

provides several versions of the T1 CSU 

offering various features and mounting 

options. ADTRAN T1 CSU products include 

the T1 ESF CSU and the rackmounted 

T1 ESF CSU Smart 16 Card.

T1 CSU ACE

DSX-1

DSX-1

DSX-1

DSX-1

DSX-1

DSX-1

T1/FT1

T1/FT1

T1/FT1

Router

T1 CSU ACE

T1 CSU ACE

T1 CSU ACE

Network

PBX

PC

Host/FEP

T1/FT1

T1 CSU ACE

T1/FT1

T1 CSU ACE

T1/FT1

Dial Backup

Channel Bank

Microwave

Radio

T1 CSU ACE

T1 CSU ACE

NET

EQ

SYNC

PWR

LOS

MAN

LB

RMT

LB

LOS

MAN

LB

RMT

LB

T1 CSU ACE

NET

EQ

SYNC

PWR

LOS

MAN

LB

RMT

LB

LOS

MAN

LB

RMT

LB

T1 CSU ACE

NET

EQ

SYNC

PWR

LOS

MAN

LB

RMT

LB

LOS

MAN

LB

RMT

LB

T1 CSU ACE

NET

EQ

SYNC

PWR

LOS

MAN

LB

RMT

LB

LOS

MAN

LB

RMT

LB

T1 CSU ACE

NET

EQ

SYNC

PWR

LOS

MAN

LB

RMT

LB

LOS

MAN

LB

RMT

LB

T1 CSU ACE

NET

EQ

SYNC

PWR

LOS

MAN

LB

RMT

LB

LOS

MAN

LB

RMT

LB

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