MT720A-232T-R2 BLACK BOX, MT720A-232T-R2 Datasheet - Page 3

• Manufacturer Part Number: MT720A-232T-R2
• Description: FRADSWITCH A ASYNC RS-232 8-PO
• Manufacturer: BLACK BOX

3/19/2008
#12472
MT720A-35T-R2
724-746-5500
blackbox.com
TECH SPECS
Clock Source — Internal or recovered from receive signal (independently
Command Modes — Async channels only: ITU-T X.28 and proprietary
Compliance — CE (EN 55022, EN 50082-1, EN 60950), FCC Part 15 Subpart
Data Rate — Each async channel and each main-link port set as sync:
Flow Control — Async channels only: X-ON/X-OFF
Logon Messages — Async channels only: Herald and bulletin (user-
Memory — 2 MB RAM
Packet Size — X.25: Up to 4096 bytes (4 KB);
Protocols — Async channels (async only) and main-link ports set as async:
Terminal Handling — Enhanced, beyond ITU-T X.3 requirements
User Controls — On-screen terminal-based menu system, including SNMP
Interface — Async channels: EIA/TIA RS-232, DCE, proprietarily pinned on
Connectors — All rear-mounted: MT720A-35T-R2: (8) RJ-45 F for async
Indicators — (18) or (34) front-mounted LEDs: All models: (1) for unit
Temperature Tolerance — 32 to 122° F (0 to 50° C)
Humidity Tolerance — Up to 90%, noncondensing
Power — From utility-power outlet, through included 6.5-ft. (2-m)
Size — 1.7"H x 17"W x 11.7"D (4.3 x 43.2 x 29.9 cm)
Weight — 4.2 lb. (1.9 kg)
user-selectable for receive and transmit paths)
extensions; ITU-T X.29
B Class A, IC Class/classe A
Main-link ports set as sync (aggregate): Any combination of data rates
Other protocols: Up to 8192 bytes (8 KB)
Main-link ports set as sync:
Management: SNMP
management; (1) Front-mounted recessed reset push button;
(1) Internal jumper on motherboard for power-up configuration
loading
Main-link ports (all DTE): ITU-T V.35
MT722A-35T-R2: (24) RJ-45 F for async channels;
Both: (3) M/34 female for main-link ports
MT720A-35T-R2: (8) for async channel activity (one for each async
MT722A-35T-R2: (24) for async channel activity (one for each async
Fuse: Integral 0.5 A, 250 V;
Consumption: Up to 20 watts
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;
that, when added together, does not exceed 2.15 Mbps
definable)
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;
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
Data link (optional): HDLC, SDLC, or STM (proprietary, user-
STM: Compatible with Stat-8 statistical multiplexor;
RJ-45;
channels;
power; (1) for hardware error; (1) for buffer overflow; (1) for test
mode; (3) for main-link synchronization (one for each main-link
port); (3) for main-link activity (one for each main-link port);
channel);
channel)
power cord and rear-mounted IEC 320 male inlet, to internal
transformer: Input: 100–230 VAC, 50–60 Hz (autosensing);
T1.618, as well as ITU-T Q.922 Annex A; also supports CLLM, LMI,
and ANSI PVC management protocols;
selectable):
If you need a CSU/DSU, order…
You might also need a modem…
…or a Modular Statistical Multiplexor…
Remember to order cables…
To purchase a modular adapter, or for help building one,
call Black Box Technical Support.
Guard your Fradswitch with surge protectors…
Item
V.35 Fradswitch A
WHAT‘S INCLUDED
✦ V.35 Fradswitch A
✦ Power cord
✦ Control cable
✦ Rackmount kit
✦ User’s manual
✦ Packet Switching Guide
with V.35 Main-Link Ports
CSU/DSU MS
Modem 3600
Stat-8
Shielded Twisted-Pair Patch Cable (STP) with Snagless Boots,
4-Pair, RJ-45, CAT5, Stranded, PVC, Gray
V.35 Interface Cable (34-Conductor),
Surge Protectors
24-Channel
Male/Male
CAT5 100BASE-TX Surge Protector
RS-232 DB25 (All Wires) Protector
V.35 Data Line Protector
RS-422 Surge Protector, DB15
8-Channel
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