Black Box X.25 PAD-2 Folheto

Compliance: CE (EN55022,

EN 50082-1, EN 60950) Class A;
FCC Class A, IC Class/classe A

Channel 1 (to packet-switched

synchronous link):
MX320A-HS: ITU V.35

proprietarily pinned on
DB25, DTE;

MX325A-HS: EIA/TIA RS-232/

ITU V.24/V.28, DTE;

Channels 2 and 3 (to local async

devices): EIA/TIA RS-232/
ITU V.24/V.28 proprietarily
pinned on RJ-45, DCE

Channel 1: Synchronous 1988

ITU X.25 LAP-B or Frame
Relay; for Frame Relay,
supports CCLM, LMI, and
ANSI PVC management
protocols, as well as ANSI
T1.606, T1.617 Annex D, T1.618,
and ITU Q.922 Annex A;

Channels 2 and 3: Asynchronous

SLIP or X.28 (user-selectable)

Clock Source: Channel 1: Internal or

external for receive and transmit
paths, user-selectable

Channel 1:

MX320A-HS: Up to 2 Mbps,

user-selectable;

MX325A-HS: Up to 128 kbps,

user-selectable;

Channels 2 and 3: 75 bps to

115.2 kbps, user-selectable

Data Format: Channels 2 and 3: 5, 6,

7, or 8 data bits; even, odd, mark,
space, or no parity; 1, 1.5, or
2 stop bits; user-selectable

Flow Control: Channels 2 and 3:

Hardware (DTR/CTS) or software
(X-ON/X-OFF), user-selectable

Channels 2 and 3:
Log-on messages: Herald and

bulletin, user-definable;

Command modes: ITU X.28 (with

proprietary extensions) and
X.29;

Terminal handling: Enhanced,

beyond the requirements of
ITU X.3

Packet Size: Up to 4 KB for X.25 or

8 KB for Frame Relay

Up to 50 ft. (15.2 m) to attached

devices;

MX320A-HS: If unbalanced

control leads aren’t required,
transmission across 500 ft.
(152.4 m) or more might be
possible to/from Channel 1
only

Memory: 512 KB RAM

Top-mounted reset button;
(1) Internal board-mounted

jumper for power-up settings

Indicators: (6) Top-mounted LEDs:

(1) POWER (lights green while

unit is powered);

(1) ERROR (lights red if a

hardware malfunction is
detected);

(1) SYNC (lights or flashes green

to show status of
synchronization between
linked PAD-2s);

(3) DATA (one for each

channel—these light or flash
yellow in response to data
activity on the corresponding
port)

(1) Left-side-mounted DB25

female for channel 1 (patch
cable provided to M/34 female
on MX320 models);

(2) Right-side-mounted RJ-45

female for channels 2 and 3; 

(1) Front-mounted barrel jack for

power

Temperature Tolerance: 32 to 122˚F

(0 to 50˚C)

Humidity Tolerance: Up to 90%

noncondensing

Through desktop power supply:

Input: 100 to 250 VAC, 47 to

63 Hz (autosensing), at
approximately 300 mA;

Output: 5 VDC at up to 1.5 A;

Consumption: 3.5 watts maximum

Size: 0.9"H x 2.1"W x 4.3"D

(2.3 x 5.4 x 11 cm)

Weight: 3.3 oz. (90 g)

Mainframe or

server

X.25

PAD-2

X.25

PAD-2

Frame

Relay

CSU/DSU

CSU/DSU

Back-office

PC

Serial POS

terminal

Specifications

X.25 PAD-2

V.35 .....................................................................MX320A-HS
RS-232................................................................MX325A-HS

You might also need:
CSU/DSU MS ........................................................MT132A-R2
V.35 Cable, M/34 M/M (specify length).........EYN450-MM
RS-232 Cable (specify length)

DB25 M/F..........................................................ECM25C-MF
DB25 M/M......................................................ECM25C-MM

CAT5 unshielded twisted-pair cable, RJ-45 M/M, 

specify length...........................................EYN737MS-MM

8-Wire Modular Adapter Kits (unassembled)

RJ-45 F

↔DB9 F...........................................................FA065

RJ-45 F

↔DB25 F.........................................................FA027

RJ-45 F

↔DB25 M.......................................................FA025

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