I-Mux Service Unit. Up to 1.024Mbps with an ISDN PRI plus up to 4 x BRI ISDN ports

• ISDN inverse multiplexer or I-Mux
• Single PRI interface to the network
• Optional BRI ports
• BRI ports as 2-wire “U” and/or 4-wire “S”
• Single or dual high speed serial ports
• V.35, RS530, X.21 interfaces
• RS366, control lead, front panel or GUI dialling
• Speeds to 1.024Mbps
• Supports BONDing standard
• Inter-works with other I-Muxes, including Adtran® ISU
• Interworks with DataBand CSI (Central Site I-Mux)
• Intuitive GUI and front panel control
• Local serial port, Ethernet and remote ISDN management
• Password protected
• Encrypted Management protocol
• NV RAM stores configuration
• Dual FLASH banks for updates
• New design using latest supportable components
• Extensive Approvals incl Telecoms
• Low power consumption
• RoHS compliant

Other configurations

• Multiple PRI and DTE central site unit see the DataBand CSI
• • ISDN satellite splitter see DataBand Splitter

Typical Applications

• Video conferencing
• Inter-connectivity of encryptors
• High speed file transfer
• Aggregation of several satellite links
• Leased line backup

Patapsco’s DataBand ISU and CSI range connect high speed serial data devices together using multiple ISDN calls, in effect dialling a high-speed “leased line” between non-ISDN devices. The 1024 version is available with one PRI ISDN plus up to 4 Basic Rate ISDN interfaces and can deliver data rates of up to 1.024Mbps per serial port. Specifying a unit with 1 PRI (user switchable between E1 and T1) plus a mixture of 2-wire “U” BRIs and 4-wire “S” interfaces means users in the field can utilise whatever service is available to them The “S” BRI interfaces can be individually switched between the standard TE presentation (connects to a carrier-delivered service) and NT presentation (acts like a carrier interface and connects to other ISDN equipment). This feature gives added flexibility on service types and means other ISDN devices can also share the network resources (see diagram 2).

• The clock recovery methods use a variety of mechanisms. These include sophisticated algorithms which allow users to “tune” the performance to match the network characteristics; after all, networks differ greatly – an extreme example being between the public Internet and a private managed networks supporting Quality of Service (QoS).

Application Examples

1. Standalone Use

2. Inter-Connection of Encryptors

ISDN on-demand access for V.35, RS530 and V.21 encryptors
Stand-alone DataBand ISU to stand-alone ISU

And/or stand-alone to CSI Central Site I-Mux
(see separate data sheet)

3. Videoconferencing (VC)

ISDN access for non-ISDN videoconference units.
Inter-operates with VCs with internal ISDN ports and BONDing aggregation.
Dual-port version gives access to two attached devices, each sharing the ISDN at the same time, or using all the ISDN for one
device.

4. Share ISDN access

Use ISDN services between data devices using the I-Mux capability and other ISDN equipment.

Diagram 5

This example shows a PRI to the network and 4 BRI NT ports to local devices, such as STE encrypted telephones, PCs, routers etc.
The VC can run at up to 1.024Mbps and the BRIs have access to both “B” channels.
For other ISDN switch, conversion and sharing capabilities see our Liberator range.

5. High Speed File Transfer

Dial up high speed access when needed.

Diagram 6

6. Leased Line Backup or Disaster Recovery

Dial backup capacity when needed, via an independent network.

General

Available in several versions:
• ISDN Interfaces
o 1 PRI ISDN, user switchable E1/T1
o 4 BRI ports as:
- 4 x 4-wire “S” interfaces user switchable NT/TE
- 4 x 2-wire “U” interfaces for connection to the network
- 2 x “S” and 2 x “U”
• Data or Serial Interfaces
DataBand ISU 1024 is available with one or two factory-fit interfaces, fitted in any combination
o V.35 “MRAC”
o RS530 25-way “D” – standard pin-out
o RS530 25-way “D” – Adtran compatible
o X.21/V.11 15-way “D”
o RS366 dialling port 25-way “D”
The ISU 1024 supports a single interface to a DTE plus an RS366 dialling port, or one or two DTE interfaces (using a dialling method other than RS366).

All units use high-quality internal PSUs and are available with AC or DC inputs.
The key-pad and LCD are designed for fast and simple operation of the device with minimal input required to perform the dialling functions. Detailed configuration is achieved via the GUI, which can be connected via the serial port (can be disabled), an Ethernet port (used only for configuration access and can be disabled) or via a remote ISDN call (can be disabled). Various Password levels are available if required.
The GUI (DbLite) is free of charge and provides configuration of one unit at a time. A networking version is available which gives visibility of multiple DataBand ISUs and central site CSIs – contact for information.
The traffic between the Manager GUI and the device can be optionally encrypted via an AES256bit system with key exchange routines.
Unlike most other devices, the DataBand has formal Telecommunications Approvals for direct connection to carrier
ISDN services.

Ordering Information

DB/ISU/1024/AC Base unit with AC PSU and single PRI
DB/ISU/1024/DC Base unit with DC PSU and single PRI
DB/ISU/1024/512 DTE port(s) at up to 512kbps max BONDing speed each
DB/ISU/1024/1024 Upgrade DTE port(s) to 1024kbps max BONDing speed each
DB/ISU/1024/4U 4 “U” ISDN interfaces
DB/ISU/1024/4S 4 “S” ISDN interfaces
DB/ISU/1024/2U2S 4 ISDN interfaces - 2 "U" and 2 "S"
DB/ISU/1024/DUAL Upgrade to enable 2nd DTE port
DB/ISU/1024/V35 V.35 DCE female “MRAC” interface
DB/ISU/1024/X21 X.21/V.11 DCE female 15-way “D”
DB/ISU/1024/530 RS530 DCE female 25-way “D”
DB/ISU/1024/366 RS366 dialling port female 25-way “D”
DB/ISU/1024/RMK 19” Rack Mount Kit
DB/ISU/1024/2U/UP Field upgrade from 2 “U” ISDN interfaces to 4
DB/ISU/1024/SEC Security Management Pack
• Includes Manual and other documentation on CD, paper Quick Start guide, serial port Controller Cable.

Product Specifications

A. Network Interfaces
• 1 PRI RJ45 ISDN interface E1/T1
• Optionally 4 BRI interfaces, RJ45
o Available as “S” or “U”
B. DTE Interfaces
Up to two factory-fit cards available. Any combination:
• V.35 “MRAC”
• RS530 25-way “D” – Adtran compatible
• X.21/V.11 15-way “D”
• RS366 dialling port 25-way “D” - Adtran compatible
• Speeds to 1.024Mbps each interface.
C. LCD/Front Panel
• 2 x 16 character LCD
• 16 button key-pad
D. Out-going Dialling Options
• GUI
• Front key-pad/LCD
o Password protected
o Pre-stored numbers
o Manual entry of number(s)
• Control lead – pre-stored
• RS366
E. In-coming Call Options
• Accept all
• Accept authorised (CLI)
• Manual accept
• Reject all
F. Data Rates (BONDing)
64kbps to 1.024Mbps per data port.
G. Inter-operability
BONDing compatible devices, including inverse multiplexers
H. ISDN switch compatibility
National 1 (USA), 5ESS, DMS100, Euro-ISDN
Patapsco have been shipping ISDN products across the world
for over 17 years and have experienced most “issues”.
DataBand GUI has many options to cater for different country’s
implementations and is extremely flexible.
I. Power
• AC
o Internal switch mode supply
o Standard IEC connector
o 95-240VAC auto-sensing
o Max current consumption 100mA @230VAC
• DC
o Internal supply
o Standard 4mm Terminal Block
o -33 to -75 VDC
o 0.35A max consumption
J. Physical
• 292w x 200d x 44h
• Metal chassis, front & rear panels
• 1.4Kg 2.4lb
• Optional 19” Rack Mount Kit
K. Environment
• Operating 0-55°C
• Humidity 10-90% non-condensing
• Natural convection cooling
L. Maintenance
There are no serviceable parts or maintenance required.
The battery used for the real-time clock and some NV RAM
elements have a 10 year (typical) life-time.
M. Approvals
• Safety
o ‘CE’ marked
o IEC60950-1:2nd Edition
o ACS/NZS60950:1:2003
• Emissions
o FCC Part 15 Class A
o EN55022:1998
o EN55024:1998-A12001
o EN61000-3-2/3:1995
o AS/NZS CISPR22:2000
• Telecoms
o TBR12/TBR13
o TIA/E1A-IS/968
o TNA117
o AS-ACIF-S006/S016
o CS-03 Canada
o TIA-968-A USA
• RoHS
o Compliant