Black Box MT726A-R2 User manual

Create a high-performance, low-cost wide-area
network with Frame Relay or X.25!
Create a high-performance, low-cost wide-area
network with Frame Relay or X.25!
6- and 12-Port Fradswitch A/S
© 2007. All rights reserved. Black Box Corporation.
FREE 24-hour Tech Support: 724-746-5500
blackbox.com

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FEATURES
• Connect up to 6 or 12 devices to X.25
or Frame Relay.
• Modular ports can be RS-232 or V.35—
order as many of each as you need.
• Supports async, X.25, Frame Relay,
HDLC, SDLC, STM, and SLIP.
• Aggregate data rates up to 2.15 Mbps
for each set of three ports.
• Built-in management agent for
configuration, monitoring, diagnostics,
statistics, and reports.
The Fradswitch can be the centerpiece of just about
any packet-switched network.
OVERVIEW
Do you have X.25 or Frame Relay service? Would you like
to be able to attach different kinds of devices, or connect to
different service types or access points, and switch between
them all?
You need the BLACK BOX®Fradswitch Asynchronous/
Synchronous (Fradswitch A/S). It’s a high-performance, modular
X.25/Frame Relay switch that you can use for routing between
X.25 or Frame Relay connections.
Here’s how the “modular“ part works: When the Fradswitch
A/S comes from the factory, it has empty slots where its main
link ports will go. Order any combination of RS-232 and V.35
Interface Modules, depending on what types of devices or
services you need to attach to the Fradswitch, and install them
in these slots.
The 6-Port Fradswitch A/S (MT726A-R2) can hold (and switch
between) as many as six main links. These are usually set up as
synchronous but can be async instead. The 12-Port Fradswitch-
A/S (MT727A-R2) has the capacity for up to 12 main links. Each
model also has two hard-wired RS-232 channels (pinned on
RJ-45 connectors) that operate in async mode only.
You can set the main link ports to use any of several
protocols: in addition to the standard ones for X.25 and
Frame Relay, the Fradswitch also supports HDLC and SDLC, the
proprietary stat-mux protocol STM (for use with our Stat-4
and Stat-8 muxes), and SLIP/encapsulated IP.
The maximum data rate for each async channel is
38.4 kbps; the maximum async data rate for each main link
port is 115.2 kbps. Maximum sync data rates for the main link
ports are determined for each set of three ports (1 through 3,
4 through 6, 7 through 9, and 10 through 12) rather than for
every individual port: The total of the three ports’ data rates,
added together, can’t exceed 2.15 Mbps.
The Fradswitch A/S has a powerful terminal-based menu
system that enables you to configure it for many types of
packet-switching applications then operate it with little or
no maintenance. The unit supports:
• Permanent virtual circuits (PVCs) and switched
virtual circuits (SVCs).
• Call IDs.
• IP routing and routing tables.
• Frame Relay funneling.
• X.32 (XID) tables.
• SNMP management and event reporting.
• X.25 multicasting.
• And much, much more.
Multisession is also provided on each async channel;
each channel can access up to four separate sessions simultan-
eously. This Fradswitch feature makes it easy for you to
compare data from different sources.
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724-746-5500 blackbox.com
3174 Controller
Frame Relay
Router
X.25
PCFrame Relay Host
12-Port Fradswitch A/S
(MT727A-R2)

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TECH SPECS
Compliance — CE (EN 55022, EN 50082-1, EN 60950), FCC Part 15 Subpart B
Class A, IC Class/classe A
Protocols — Async channels (async only) and main link ports set as async:
ITU-T X.28 or IP/SLIP, user-selectable; supports IP encapsulation over
X.25 (as per RFC 1356) or Frame Relay (as per RFC 1490); also supports
dialup links for X.25 with X.32 protocols;
Main link ports set as sync:
Packet switching: ITU-T X.25 or Frame Relay (user-selectable);
X.25: Complies with ITU-T X.25 (1988), LAP-B;
Frame Relay: Complies with ANSI T1.606, T1.617 Annex D, and
T1.618, as well as ITU-T Q.922 Annex A; also supports
CLLM, LMI, and ANSI PVC management protocols;
Data link (optional): HDLC, SDLC, or STM (proprietary, user-selectable);
STM: Compatible with Stat-4 and Stat-8 statistical multiplexors;
Management: SNMP
Packet Size — X.25: Up to 4096 bytes (4 KB);
Other protocols: Up to 8192 bytes (8 KB)
Data Rate — Each async channel: 75, 110, 150, 300, or 600 bps, or 1.2,
2.4, 4.8, 9.6, 19.2, or 38.4 kbps, user-selectable with (2) RJ-45 ports;
Each main link port set to async: 75, 110, 150, 300, or 600 bps, or
1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 57.6, or 115.2 kbps, user-selectable;
Each set of three main link ports (Ports 1 through 3, 4 through 6,
7 through 9, and 10 through 12) set to sync: Any combination
of data rates that, when added together, does not exceed
2.15 Mbps (user-selectable)
Clock Source — Internal or recovered from receive signal (independently
user-selectable for receive and transmit paths)
Flow Control — Async channels only: X-ON/X-OFF
Logon Messages — Async channels only: Herald and bulletin
(user-definable)
Command Modes — Async channels only: ITU-T X.28 and proprietary
extensions; ITU-T X.29
Terminal Handling — Enhanced, beyond ITU-T X.3 requirements
Maximum Distance — RS-232: 50 ft. (15.2 m);
V.35: 2000 ft. (609.6 m)
Memory — 2 MB RAM
User Controls — On-screen terminal-based menu system, including
SNMP management;
(1) Front-mounted recessed reset push button;
(1) Internal jumper on motherboard for power-up configuration loading;
(1) Jumper bank on each Interface Module board for DTE versus DCE
Interface — Async channels: EIA/TIA RS-232, DCE, with proprietary pinning
on RJ-45;
Main link ports: Depends on which interface modules are
installed (all interfaces are DTE or DCE, user-selectable):
MT728C-232: EIA/TIA RS-232/ITU-T V.24;
MT728C-V35: ITU-T V.35 with proprietary pinning on DB25 and
patched to M/34
Connectors — Both models: (2) Front-mounted RJ-45 female for
async channels;
MT726A-R2: (6) Rear-mounted DB25 female for main link ports
(how many are active depends on how many interface modules
you install);
MT727A-R2: (12) Rear-mounted DB25 female for main link
ports (how many are active depends on how many interface
modules you install);
MT728C-V35 Interface Modules come with a 1-ft. (0.3-m) DB25 male
to M/34 female adapter cable
Indicators — (18) or (30) Front-mounted LEDs:
Both models: (1) for unit power; (1) for hardware error;
(1) for buffer overflow; (1) for test mode; (1) for async channel
1 activity; (1) for async channel 2 activity;
MT726A-R2: (6) for main link synchronization, (6) for main link
activity;
MT727A-R2: (12) for main link synchronization, (12) for
main link activity
Temperature Tolerance — 32 to 122˚F (0 to 50˚C)
Humidity Tolerance — Up to 90%, noncondensing
Power — From utility-power (mains) outlet, through included 6.5-ft. (2-m)
power cord and rear-mounted IEC 320 male inlet, to internal
transformer:
Input: 90 to 260 VAC, 47 to 63 Hz (autosensing);
Fuse: Internal;
Consumption: Up to 30 watts
Size — 1.7"H x 17"W x 11.7"D (4.3 x 43.2 x 29.7 cm)
Weight — MT726A-R2: 3.9 lb. (1.8 kg);
MT727A-R2: 4.8 lb. (2.2 kg)

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Recognize any of these situations?
• You wait more than 30 minutes to get through
to a vendor’s tech support.
• The so-called “tech” can’t help you or gives you
the wrong answer.
• You don’t have a purchase order number and the
tech refuses to help you.
• It’s 9 p. m. and you need help, but your vendor’s
tech support line is closed.
According to a survey by Data Communications
magazine, 90% of network managers surveyed say
that getting the technical support they need is extremely
important when choosing a vendor. But even though
network managers pay anywhere from 10 to 20% of their
overall purchase price for a basic service and support
contract, the technical support and service they receive falls
far short of their expectations—and certainly isn’t worth
what they paid.
At Black Box, we guarantee the best value and the
best support. You can even consult our Technical Support
Experts before you buy if you need help selecting just
the right component for your application.
Don’t waste time and money—call Black Box today.
Why Buy From Black Box? Exceptional Value.
Exceptional Tech Support. Period.
724-746-5500 blackbox.com
The Fradswitch A/S:
✦ Fradswitch A/S
✦ Power cord
✦ Control cable
✦ Rackmount kit
✦ User’s manual
✦ Packet switching guide
Each Interface Module:
✦ Module’s daughterboard
✦ Interface-identifier tag
The V.35 Interface Module also comes with:
✦ DB25 to M/34 adapter cable
WHAT‘S INCLUDED Item Code
Fradswitch A/S
6-Port MT726A-R2
12-Port MT727A-R2
Fradswitch A/S Interface Modules
RS-232 MT728C-232
V.35 MT728C-V35
You may also need…
CSU/DSU MS MT132V-R2
Modem 3600 (Includes a 10-ft. [3-m] RS-232 Cable and a
DB25-to-DB9 Adapter) MD1000A-CABPAK-R2
Modular Statistical Multiplexors
Stat-4 MX864A
Stat-8 MX866A
Cables (Specify Length)
RS-232 (Async, Modular):
Straight-Pinned RJ-45 Male
to RJ-45 Male Shielded Twisted-Pair Cable EVNSL60
RS-232 (Sync):
Straight-Pinned DB25 Male to
DB25 Male Shielded RS-232 Cable EDN25C-MM
V.35:
Straight-Pinned M/34 Male to M/34 Male Cable
EYN450-MM
Surge Protectors
RS-232 (on RJ-45) SP250A-R2
RS-232 (on DB25) SP360A
V.35 SP143A-R2
MT726A-R2
YOU MAY ALSO NEED
• A CSU/DSU, sync modem, or other WAN-access device.
• An STM-compatible statistical multiplexor such as our
Stat-4 or Stat-8.
• Async shielded twisted-pair cables and modular adapters.
• Depending on which model you have, an RS-232 or a V.35
cable to run from the Fradswitch to your WAN device.
• Power-line and data-line surge protectors.