Black Box Network Hardware X25 PAD 2 User Manual

© 2000. All rights reserved.  
Black Box Corporation.  
Black Box Corporation • 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 • www.blackbox.com e-mail: [email protected]  
X.25 PAD-2  
The most compact way to connect  
one or two RS-232 devices to X.25  
or Frame Relay.  
Key Features  
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.  
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.  
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  
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.  
he X.25 PAD-2 gives one or two  
Tpieces 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:  
Provides access to a  
packet-switched link  
for one or two RS-232  
devices.  
Local channels are  
modular, with top  
async data rate of  
115.2 kbps.  
• 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  
Link channel is sync  
and can be either  
RS-232 (up to 128 kbps)  
or V.35 (up to 2 Mbps).  
• A FRAD (Frame Relay  
Access Device).  
Can be configured for  
a large variety of  
It can also be used to run  
asynchronous data over Frame  
Relay, either in X.25 packets or  
directly (in SLIP protocol).  
The X.25 PAD-2 can also be  
monitored through its firmware,  
but it has six top-mounted LEDs  
that show you basic operating  
applications with  
terminal-based menus.  
Two versions are available:  
patch cable for the WAN-link port. information at a glance: POWER,  
Universal power  
supply.  
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  
ERROR, SYNC, and three activity  
LEDs (one for each channel).  
Although you should never  
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 X.25 PAD-2’s RESET button to  
cable or (b) one or two twisted-  
reset its internal circuitry and  
Measures only  
0.9"H x 2.1"W x 4.3"D  
(2.3 x 5.4 x 11 cm).  
have to do so, you can press the  
pair cables with modular adapters start its power-up self-test.  
for channels 2 and 3.  
12/8/2000  
#25120  
 

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