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Introduction
S
O
YSTEM
VERVIEW
The Wideband 3190 (HMS-358 List 5 and List 6) combines an industry-standard multiplexer function with a
High-bit-rate Digital Subscriber Line (HDSL, HDSL2, or HDSL4) distribution system, providing the lowest-cost
T1 delivery system available. The HMS-358 terminates 28 ports and multiplexes them to either 28 discrete DSX-1
interfaces or into a single, high-speed network interface with full metallic and electrical test access on all low
speed ports. By selecting the multiplexer card, a variety of high-speed network interfaces, such as DS3 and STS-1,
can be accommodated. The use of the same multiplexer and DSL units found in ADC standalone products assures
a versatile and cost-effective solution to your system requirements. The open architecture of the HMS-358
supports backward compatibility by accepting any industry-compliant 3192 line card. (ADC recommends that
third-party line cards be certified for compliance with a Wideband 3190.)
Figure 1
shows a functional diagram of a Wideband 3190 system.
DS1/E1 (DSX/MUX)
Office battery A
Office battery B
TDM
Network
10BASE-T
Electrical test access
BITS timing
Craft interface
Metallic test access
AUX port
10BASE-T/10BASE-2
Alarm relays
Housekeeping
OS interface
Craft interface
For management, both Terminal Access Option (TAO) and Transaction Language 1 (TL1) systems are supported
on X.25, 10BASE-T, 10BASE-2, and RS-232 interfaces. The HMS-358 also features standard alarm relay
contacts and accepts a redundant A/B office battery source.
2
Wideband 3190 Chassis (HMS-358)
Network
Office battery
EMI filter
Line interface
unit (LIU)
Multiplexer
Line interface
HXU-358
unit (LIU)
HXU-359
HXU-360
Figure 1. Wideband 3190
July 14, 2002
Figure 2 on page 3
HLU/ELU
HLU/ELU
(HXU)
1-to-28 card
positions
HLU/ELU
or
HLU/ELU
TAO
management
Management
card
(HMU-319)
LTPH-SM-1052-04
shows a typical application.
Group 1
DSL/Line
CPE
CPE
CPE
CPE
NMA
(OSTS)
HMS-358 List 5 and List 6
Group 2
AUX
CPE
CPE
CPE
CPE
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