ADTRAN Switch T BR1TE User Manual

T-BR1TE  
I S D N T - B A S I C R A T E  
T R A N S M I S S I O N E X T E N D E R  
The ADTRAN T-BR1TE is an economical way of offering Basic Rate ISDN  
by extending Basic Rate Service from an ISDN-equipped PBX or switch over  
T1 carrier lines to remote locations. Using the T-BR1TE, the S/T-interface  
can be deployed from a remote location serving a maximum of 3,000 feet,  
making it ideal for customer-owned networks.  
P R O D U C T F E A T U R E S  
The T-BR1TE is a standard D4 channel unit that plugs into a T1 multi-  
plexer such as a D4 channel bank, SLC-96, ADTRAN ACT, or BR1TE bank.  
The T-BR1TE transports 2B+D information over T1 carriers by inserting the  
two B channels at 64 kbps and a single D channel at 16 kbps into three  
DS-0 time slots. The Basic Rate Interface information is transported from a  
T-BR1TE in the T1 multiplexer at the switch location, over the T1 carrier, to  
the remote T-BR1TE and T1 multiplexer. The T-BR1TE can be optioned as  
either the adjacent to the switch unit or the adjacent to the customer unit,  
reducing inventory requirements.  
Extends range of ISDN service  
to remote locations  
Transports ISDN Basic Rate  
Interface (2B+D) information  
over T1 carriers  
Provides power for up to eight  
terminal equipment units  
The T-BR1TE provides a standard 4-wire S/T-interface which operates at  
192 kbps full-duplex and utilizes separate twisted wire pairs for transmit  
and receive signals. The S/T-interface conforms to the ANSI T1.605-1992  
S/T-interface standard and the CCITT I.430 Layer 1 standard.  
Eliminates the need for an NT1  
by delivering the ISDN S/T-  
interface directly to the TE  
The T-BR1TE can supply power in a PS1 or PS2 arrangement for up to  
eight pieces of terminal equipment in a short or extended passive bus. This  
power is derived from the T1 multiplexer -48 VDC supply. PS1 (phantom  
power) provides power on the transmit and receive wires of the S/T-interface.  
PS2 provides power to the terminal equipment over an additional dedicated  
pair of wires. In both cases, the T-BR1TE monitors the S/T-interface for an  
overcurrent fault condition. In the event of such a condition, the T-BR1TE  
automatically limits the amount of current being delivered until the fault  
condition is removed.  
Industry standard D4 channel  
unit plugs into ADTRAN ACT or  
BR1TE bank  
Complies with ANSI T1.605-1992  
and CCITT I.430 specifications  
Supports multiple switch  
®
vendors including Lucent 5ESS ,  
Northern Telecom DMS-100 ,  
The front panel of the T-BR1TE contains a display, controls, and Bantam  
test jacks for local test access.  
®
and Siemens EWSD  
Built-in maintenance and  
testability features  
Provides automatic overcurrent  
protection for the S/T Bus  
Industry leading 5 year  
warranty  
 

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