Black Box X.25 PAD-2 Leaflet
Provides access to a
packet-switched link
for one or two RS-232
devices.
packet-switched link
for one or two RS-232
devices.
Local channels are
modular, with top
async data rate of
115.2 kbps.
modular, with top
async data rate of
115.2 kbps.
Link channel is sync
and can be either
RS-232 (up to 128 kbps)
or V.35 (up to 2 Mbps).
and can be either
RS-232 (up to 128 kbps)
or V.35 (up to 2 Mbps).
Can be configured for
a large variety of
applications with
terminal-based menus.
a large variety of
applications with
terminal-based menus.
Universal power
supply.
supply.
Measures only
0.9"H x 2.1"W x 4.3"D
(2.3 x 5.4 x 11 cm).
0.9"H x 2.1"W x 4.3"D
(2.3 x 5.4 x 11 cm).
T
he X.25 PAD-2 gives one or two
pieces of RS-232 equipment
pieces of RS-232 equipment
easy, cost-effective access to a
packet-switching network or
device in a wide range of applica-
tions. For example, it can serve as:
packet-switching network or
device in a wide range of applica-
tions. For example, it can serve as:
• A PAD (Packet Assembler/
Disassembler);
• An access unit for private or
public X.25 networks;
• An access server for a
mainframe’s X.25 ports;
• An async switch and
contention manager; or
• A FRAD (Frame Relay
Access Device).
It can also be used to run
asynchronous data over Frame
Relay, either in X.25 packets or
directly (in SLIP protocol).
Relay, either in X.25 packets or
directly (in SLIP protocol).
Two versions are available:
The V.35 version (product code
MX320A-HS) uses ITU V.35 for its
channel-1 (sync packet-switched)
interface, while the RS-232 model
(MX325A-HS) uses RS-232/V.24.
On all models, channel 1 (hidden
from view in the above illustration)
is a DB25 female connector, while
MX320A-HS) uses ITU V.35 for its
channel-1 (sync packet-switched)
interface, while the RS-232 model
(MX325A-HS) uses RS-232/V.24.
On all models, channel 1 (hidden
from view in the above illustration)
is a DB25 female connector, while
RESET
CH3
ERROR
POWER
CH2 CH1
SYNC DA
TA
The most compact way to connect
one or two RS-232 devices to X.25
or Frame Relay.
Key Features
X.25 PAD-2
local async channels 2 and 3 are
RJ-45 female connectors. The
MX320A-HS comes with a short
cable you can attach to the WAN
port to patch it to a V.35-standard
M/34 female connector. The X.25
PAD-2’s maximum data rate on
channel 1 is 128 kbps for the
MX325A-HS or 2 Mbps for the
MX320A-HS.
RJ-45 female connectors. The
MX320A-HS comes with a short
cable you can attach to the WAN
port to patch it to a V.35-standard
M/34 female connector. The X.25
PAD-2’s maximum data rate on
channel 1 is 128 kbps for the
MX325A-HS or 2 Mbps for the
MX320A-HS.
Channel 1 is always DTE, but
can be configured for either X.25
or Frame Relay. Channels 2 and 3
are always DCE but can be
configured for SLIP or X.28.
or Frame Relay. Channels 2 and 3
are always DCE but can be
configured for SLIP or X.28.
The X.25 PAD-2 comes with a
universal 115/230-VAC power
supply, an RJ-45 to DB25 patch
cable for configuration, and a
manual. MX320 models should
also come with a DB25 to M/34
patch cable for the WAN-link port.
supply, an RJ-45 to DB25 patch
cable for configuration, and a
manual. MX320 models should
also come with a DB25 to M/34
patch cable for the WAN-link port.
In order to connect the PAD-2
to your equipment, you will also
need an RS-232 or V.35 cable for
channel 1, plus either (a) another
special cable like the configuration
cable or (b) one or two twisted-
pair cables with modular adapters
for channels 2 and 3.
need an RS-232 or V.35 cable for
channel 1, plus either (a) another
special cable like the configuration
cable or (b) one or two twisted-
pair cables with modular adapters
for channels 2 and 3.
Except for a single internal
jumper that controls whether or
not the X.25 PAD-2 resets itself to
factory defaults when it powers
up, you’ll configure the PAD-2
with a powerful terminal-based
menu system . Just use the
included configuration cable to
attach the unit to a terminal or a
PC running a terminal emulator,
and you can tailor the PAD-2 for
the requirements of almost any
packet-switched application. The
configuration firmware is covered
in our “Packet Switching Guide”;
if you don’t already have a copy,
ask for one when you order.
not the X.25 PAD-2 resets itself to
factory defaults when it powers
up, you’ll configure the PAD-2
with a powerful terminal-based
menu system . Just use the
included configuration cable to
attach the unit to a terminal or a
PC running a terminal emulator,
and you can tailor the PAD-2 for
the requirements of almost any
packet-switched application. The
configuration firmware is covered
in our “Packet Switching Guide”;
if you don’t already have a copy,
ask for one when you order.
The X.25 PAD-2 can also be
monitored through its firmware,
but it has six top-mounted LEDs
that show you basic operating
information at a glance: POWER,
ERROR, SYNC, and three activity
LEDs (one for each channel).
but it has six top-mounted LEDs
that show you basic operating
information at a glance: POWER,
ERROR, SYNC, and three activity
LEDs (one for each channel).
Although you should never
have to do so, you can press the
X.25 PAD-2’s RESET button to
reset its internal circuitry and
start its power-up self-test.
X.25 PAD-2’s RESET button to
reset its internal circuitry and
start its power-up self-test.
Black Box Corporation • 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 • www.blackbox.com • e-mail: info@blackbox.com
© 2000. All rights reserved.
Black Box Corporation.
12/8/2000
#25120