Product Specifications
| Prod Model: |
DSU128 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Type: |
Internal |
| Transmission Rate: |
128Kbps |
| Interface Type: |
V. 35 and RS232 |
Product Description
Features
Optional data rate:
Synchronism 600BPS to 128Kbps
Asynchronism 600BPS to 38.4Kbps
It has two kinds of interface at the same time: V. 35 and RS232 only need switch to choose
Compatible RAD ASM31, TAINET, DT128, LOOP-U3500
To setup all of parameters with the switches on the back panel without open machine
with good transmitting specialty the longest transmitting di stance in 0.4mm lines can be 5km.
Using of high-powered 2B1Q lines coding technology ensures good quality and satisfies low cost.
According with V. 54 diagnosis agreement and sustaining all kinds of methods to test loopback
Without professional working, finishing all kinds of loopback test and wrong code test only by the switches on the front panel
with protective lines to over-press lines to avoid lightning strike destroying
with two kinds of machine model: Standalone and rack mountable.
Overview
V-DSU128 is a high-performance 2-wire full duplex base-band modem based on DSP and LSI technology. Its transmission rate is up to 128Kbps. It supports synchronous and asynchronous modes and is suitable for loop between user terminal and interface of DDN or X. 25. Because it has echo cancellation technique and adaptive equal technology and high-performance 2B1Q lines coding technology, it has good transmission property. The transmission distance in 0.5mm lines can be up to 7.5km. The product conforms to the regulated lines specification of ANSI15 loopback test and the lines transmission requirement of post and telecom office of China.
V-DSU128 is compatible with ASM-31 of RAD, LOOP-U3500, DT128 of TAINET, and so on.
Work mode: |
2-wire private line; full duplex |
Data transmission rates: |
Synchronous 128K, 64K, 48K, 38.4K, 19.2K, 9.6K, 4.8K, 2.4K, 1.2K, 0.6Kbps
Asynchronous 38.4K, 19.2K, 9.6K, 4.8K, 2.4K, 1.2K,
0.6Kbps. |
Transmission mode: |
Synchronous or asynchronous |
Line interface: |
Impedance 135 ohm, physical interface RJ45, with pin 4 and pin 5 (the middle two lines ) |
Transmission features: |
Transmission distance is up to 7.5km in the line at 0.5mm diameter and 24AWG
Transmission distance is up to 5.3km in the line at 0.4mm diameter and 26AWG (loop impedance < 1400 ohm) |
Clock: |
Internal clock, external clock and slave clock |
Test methods: |
local analog loopback, local digital loopback, remote loopback |
DCE interface: |
V. 35 interface, DB25 female socket
V. 24/RS232C RS232 interface, DB25 female socket |
Power supply: |
220VAC +/- 10%, 50Hz;
48VDC(optional) |
Power consumption: |
5W |
Dimension: |
245mm * 215mm * 50mm
9" L*5.8" W*1.6" H |
Temperature: |
0 o C ~40 o C |
Humidity: |
0~95% |
Changzhou Bell Data Communication Equipment Co., Ltd established in 1993, located in Changzhou city, Jiangsu province. We has innovated various data communication products in a large body of professionals. And "VeeCOM"is our registered brand.
Bell Data Communication Equipment Co., Ltd is a leader in the production of network access, telecommunication and connectivity products including: Interface converter, SDH/MSTP Optical Transport Equipment, PDH Optical Fiber Transmission Equipment, Media converter, TDM over IP, XDSL Series Modem, DataCOM Accessories and Switch. They are widely used all over the world and have proved to be the most versatile, user-friendly and cost-effective. The high quality and stability of our products achieved us ISO 9001 Quality Authentication Certificate.
Today, we have a very professional team on design, development and manufacture network equipment. Bell's Business Leadership Team is comprised of industry leaders with proven skills and experience. Bell Data communication aim is to offer and provide our customers with comprehensive solutions designed to add value to their business, Our customers can rest assured that when they purchase our technology and services we stand behind the products and specifications all the way.
We encourage our employees to face the challenge with a positive frame of mind, with innovative ideas, and with enthusiasm. We look forward to sharing and experiencing tomorrow's realities with you!
