Black Box IC623A-M Manual De Usuario

Unconditioned twisted pair

between Converters:
IC520A and IC521A models:

2 wires (1 pair);

IC476A, IC477A, IC478A,

IC620A, IC623A, and IC624A
models: 2 or 4 wires (1 or
2 pairs);

IC470A through IC473A,

IC630A, and IC631A models:
4 wires (2 pairs)

Compliance: CE; FCC Part 15

Subpart J Class A, IC Class/
classe A

To devices: EIA/TIA RS-232C:

IC470A, IC471A, IC472A,

IC476A, IC477A, and IC478A
models: Original pinning on
DB25, DTE or DCE (user-
selectable);

IC520A and IC521A: Original

pinning on DB25, DCE;

IC473A, IC620A, IC623A,

IC624A, IC630A, and IC631A
models: Pinned according
to TIA-574 on DB9, DCE;

To line:

IC470A, IC473A, IC630A, and

IC631A models:
EIA/TIA RS-422;

IC471A and IC472A models:

EIA/TIA RS-422 or transmit-

and receive-data signals
of EIA/TIA RS-530;

IC476A, IC477A, IC478A, IC620A,

IC623A, and IC624A models:
2- or 4-wire EIA/TIA RS-485;

IC520A and IC521A models:

2-wire EIA/TIA RS-485

Protocol: Asynchronous

Data Format: Transparent to data

format

Software Flow Control: Transparent

to software flow control (X-ON/
X-OFF, etc.)

IC470A through IC473A, IC520A,

IC521A, IC630A, and IC631A
models: Loop back RS-232
hardware flow-control signals
(RTS, CTS, DTR, DSR, and CD);

IC476A, IC477A, IC478A, IC620A,

IC623A, and IC624A models:
Raise DSR in response to DTR;
raise CD in response to
carrier; raise CTS in response
to RTS (after no delay or 8-ms
delay, user-selectable); carrier
is either constantly ON or
controlled by RTS, user-
selectable

IC520A and IC521A models: Half-

duplex only;

IC476A, IC477A, IC478A, IC620A,

IC623A, and IC624A models:
Transparent to 2-wire half-
duplex or 4-wire full- or half-
duplex;

IC470A through IC473A, IC630A,

and IC631A models:
Transparent to full- or half-
duplex

IC470A through IC473A, IC630A,

and IC631A models:
Transparent to data rates up
to 19,200 bps;

All other models: Transparent to

data rates up to 115,200 bps

Between RS-232 device and

Converter: 50 ft. (15.2 m), but
Converters not directly
attached will be underpowered;

Between non-RS-232 device and

Converter:
IC470A through IC473A, IC520A,

IC521A, IC630A, and IC631A
models: 4000 ft. (1219 m);

IC476A, IC477A, IC478A,

IC620A, IC623A, and IC624A
models: Up to 9 miles
(14.5 km) depending on data
rate and cable type

IC470A, IC471A, and IC472A

models: (1) DTE/DCE slide
switch;

IC476A, IC477A, and IC478A

models: (1) DTE/DCE slide
switch and (1) internal
8-position DIP switch for
configuration;

IC620A, IC623A, and IC624A

models: (2) Internal 4-position
DIP switches for configuration;

All other models: None

Indicators: None

Connectors: See Ordering

Information on the next page

From RS-232 data and control

signals (no AC power or
batteries required);

IC473A and IC620A through

IC631A models only:
If necessary, 6 to 12 VDC can
be applied to Pin 9 of the DB9
RS-232 connector (call Black
Box Tech Support for details)

IC476A, IC477A, IC478A, IC520A,

IC521A, IC620A, IC623A, and
IC624A models: Internal
Silicon Avalanche Diodes
dissipate surges up to
600 watts per wire within
one millisecond;

All other models: None

(MTBF):
IC470A through IC478A, IC520A,

IC521A, IC630A, and IC631A
models: Approx. 240,000 hours;

IC620A, IC623A, and IC624A

models: Over 209,000 hours

10,000 ft. (3048 m)

32 to 122˚F (0 to 50˚C)

5 to 95% noncondensing

Enclosure: ABS plastic

IC470A, IC471A, and IC472A

models: 2.2"H x 1.8"W x 0.8"D 
(5.6 x 4.5 x 1.9 cm);

IC473A, IC620A, IC623A, IC624A,

IC630A, and IC631A models:
2.5"H x 1.2"W x 0.8"D
(6.4 x 3 x 1.9 cm);

IC476A, IC477A, IC478A, IC520A,

and IC521A models: 
2.7"H x 2.1"W x 0.8"D 
(6.9 x 5.3 x 1.9 cm);

IC473A and IC620A through

IC631A models: 3 oz. (85 g);

All other models: 2 oz. (57 g)

PC with attached

Converter

RS-422

industrial

printer

4000 ft. (1219 m) or more

Specifications

RS-485 chain