TCB-V.24 Tail Circuit Buffer FEATURES / BENEFITS DESCRIPTION

TCB-V.24 Tail	Circuit	Buffer FEATURES / BENEFITS DESCRIPTION
TCB-V.24
Tail
Tail Circuit
Circuit Buffer
Buffer
FEATURES / BENEFITS
√ Interface – RS-232, DB-25
Female Connectors
√ Data Rates - Up to 128Kbps
√ All Signal Cross Over
Provided by TCB-V.24
√ Supports Synchronous data
Full or Half Duplex
√ Options for 8, 16, 32 or 64 bit
buffers
√ Compact Simple Economical
Design
√ CE Approved, RoHS
Compliant
√ Sturdy Aluminum Enclosure
DESCRIPTION
The TCB-V24 provides bidirectional buffering in back-to-back RS-232 modem
cross-connection applications such as a Tail Circuit. The 64-bit circular buffers
compensate for differences between modem clock rates and limits errors to
occasional data losses when the buffer overruns.
Strapping options include the ability to utilize the modem’s DCD control signal to
re-center the buffer. With this option enabled the outgoing buffer will be centered
when DCD turns on and RTS to the other will follow the state of DCD. Otherwise,
the buffer will continue to recirculate without interruption.
Data rates up to 128Kbps are supported by the TCB-V24. However, due to cable
and driver/receiver delays, the user should be aware that incoming TD at the
modem will experience significant clock phase skew relative to the outgoing TXC
at higher clock rates. In such cases, to avoid errors the user may need to modify
the modem configuration to clock the TD signal on the opposite clock edge.
Synchronous operation in both full and half Duplex is supported. All RS-232
cabling crossover is accomplished in the TCB-V24 allowing straight thru cables.
The TCB-V24 also supports Remote Loopback on Pin 21 of the RS-232 interface.
The TCB-V.24 utilizes state of the art digital CMOS technology to provide a feature
filled product at a very affordable price. Our Field Programmable Gate Array
(FPGA) design has allowed us to offer this product with a variety of user options.
The TCB-V.24 is housed in a sturdy metal enclosure and it’s power is derived
from the RS- 232 data interface. The unit draws only 8ma of power and can
operate on as little as one control signal. Pin 9 on the RS-232 interface allows
optional DC voltage at 5-9vdc input at 300ma.
The TCB-V.24 has a three year warranty and a 24 hour turnaround on warranty
repairs.
EAST COAST DATACOM, INC.
SPECIFICATIONS
Application
Provides bidirectional buffering in back-to-back RS232 modem cross-connection applications such as a
Tail Circuit
Capacity
Two Modem or Multiplexer(DCE) Interfaces
Data Interface
RS-232 on DB-25 Female Connectors
Data Format
Other East Coast Datacom, Inc. Products
Digital Sharing Devices
Network Latency Simulators
Interface Converters
Modem Eliminators
Serial Network Adapters
Data Broadcast Units
TDM Multiplexers
Remote Secure Console Server
Serial Line Driver
Synchronous
Data Transparent at all Data Rates
Buffer Type
64 bit Centered Ring Buffer, optional settings for 8, 16
and 32 bit
Data Rates
Up to 128Kbps
Power Source
Fully Line Powered from the RS-232 Data Interface
Draws Less than 10ma
Environmental
Operating Temperature....32º to 122º F (0º to 50º C)
Relative Humidity.............5 to 95% Non-Condensing
Altitude............................0 to 10,000 feet
Dimensions
Height ....... 0.50 inches (1.27 cm)
Width ........ 1.75 inches (4.44 cm)
Length ....... 3.90 inches (9.91 cm)
Weight
1/2 pound (0.225 Kg)
Warranty
Three Years, Return To Factory
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
Regulatory Approvals
CE Approved, RoHS Compliant
ORDERING INFORMATION
Part Number: 200001
Model: TCB-V.24
Description: RS-232 Tail Circuit Buffer
INCLUDED WITH EACH UNIT:
1) Operations Manual
For further detailed technical information on this
product, contact East Coast Datacom, Inc at:
[email protected]
EAST COAST DATACOM, INC.
245 Gus Hipp Boulevard, STE 3 • Rockledge, FL 32955-4812 U.S.A.
TEL: (321) 637-9922
WEB SITE: www.ecdata.com
FAX: (321) 637-9980
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