Black Box MT185A Specifications
1
Share one T3 line
among four user DTE
data ports.
Comes with one HSSI
(High-Speed Serial
Interface).
Add up to three hotswappable HSSI
and/or V.35 ports.
Automatic or remote
configuration.
Embedded SNMP and
Telnet management
via 10BASE-T or
SLIP/PPP.
Provides detailed
performance monitoring of local and remote
units.
Easy to use menudriven interface.
T
his full-featured multiport T3
CSU/DSU offers multiplexor
design for cost-effective T3 line
sharing, enabling you to share the
cost of a T3 line among multiple
applications. The T3 Multiplexor
maximizes your use of T3 service
by providing up to four high-speed
DTE data ports capable of transmitting and receiving highcapacity real-time data. The
multiplexor comes with one HSSI
interface already installed. You
can add a mixture of up to three
more HSSI and/or V.35 modules.
Speed!
The T3 Multiplexor is designed
to maximize bandwidth and
speed. T3 provides up to 28 times
more throughput than a single T1
line for your expanding WAN or
Internet backbones. High-speed
HSSI interfaces support rates
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Super-fast T3 throughput plus an
economical migration path from T1.
Key Features
T3 MULTIPLEXOR
between 75 kbps and 44.2 Mbps in
75 kbps increments. The V.35
interface option supports rates up
to 10.5 Mbps in increments of
75 kbps.
Versatility!
Migrate from fast T1 services
to super-fast T3 services and split
the cost of the line among four
data ports and multiple
applications.
Don’t worry about
compatibility—HSSI and V.35
interfaces provide compatibility
with the vast majority of T3 DTE
applications.
Easy Configuration!
With automatic or manual
remote configuration, you can
optimize bandwidth use for the
time of day—more bandwidth for
peak hours, less for off hours.
Complete Management!
Manage the T3 Multiplexor
from a remote PC by means of
embedded SNMP (simple
network management protocol)
and Telnet. The remotemanagement PC can be connected through either SLIP/PPP or a
10BASE-T Ethernet port.
Complete configuration,
diagnostics, and performance
monitoring are available through
embedded SNMP, Telnet™, or a
VT100™ terminal interface by
means of any standard network
management program such as
OpenView™, Netview™, or
Spectrum™.
LEDs indicate the status of the
network connection and all four
ports. And detailed diagnostics
down to the port level help isolate
network problems from DTE
problems.
Black Box Corporation • 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 • www.blackbox.com • e-mail: info@blackbox.com
© 2005. All rights reserved.
Black Box Corporation.
11/1/2005 #21377
2
Agency Approvals — FCC Part 15,
Class A, UL and CUL
Clocking — Loop (slaved to network
received clock); Local (private
network master)
Diagnostics — DS3 Network: ANSI
T1.107 compatible loopbacks;
Line, payload and line with
BERT loopbacks;
DTE Ports: network, local DTE,
and remote DTE with BERT
loopbacks;
HSSI only: DTE device loopback
Framing Format — M13 and C-bit
parity
SNMP/Telnet — Via SLIP, PPP or
10BASE-T: MIB II, RFC 1213 &
1407 compliant; Optional MIB for
extended monitoring and DSU
control/configuration (contact
Technical Support).
Speed — V.35 ports: 75 kbps to
10.5 Mbps;
HSSI ports: 75 kbps to 44.2 Mbps
Interface —
Network: ClearChannel™, non-
channelized DS3;
DTE: (1) integrated HSSI port,
optional V.35 modules;
VT100 Terminal: 8-pin modular,
RS-232 (DB25) adapter
provided
Connectors — Alarm Connector:
(1) 3-screw terminal block;
Auxiliary: (1) RJ-45, rear;
Control: (1) RJ-45, front;
HSSI: (1) SCSI-2 50-pin female;
LAN: (1) 8-pin RJ-45 modular;
DS3: (2) BNC coax, female;
Modules: V.35: (1) M34;
HSSI: (1) SCSI-2 50-pin female
Indicators — LEDs: (1) Remote
active; Network port: In Service,
In Test, Alarm, LOS; DTE ports,
(1) per port: Status, In Test, TX,
RX
Temperature Tolerance —
Operating: 32 to 122°F (0 to 50°C);
Storage: -4 to +158°F (-20 to
+70°C)
Humidity Tolerance — Up to 95%,
non-condensing
Power — 120 VAC, 9W
Size — 1.7"H x 17"W x 11.6"D
(4.3 x 43.2 x 29.5 cm)
Weight — 7 lb. (3.2 kg)
Share the cost of a T3 line between multiple applications.
Specifications
Ordering Information
ITEM CODE
T3 Multiplexor, 4-Port ................................................MT185A
✦ Includes (1) RJ-45 modular cable, (1) RJ-45 modular
to DB25 female adapter, and mounting ears for rack
installation.
Modules
V.35 .............................................................................MT186C
HSSI ...........................................................................MT187C
Y
ou might also need cable…
V.35 Interface Cable, Male/Male,
6-ft. (1.8-m) .............................................EYN450-0006-MM
Coax Cable, RG59 PVC, 6-ft. (1.8-m) ......ETN59-0006-BNC
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(MT185A)
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