Black Box IC237A User manual

JUNE 1995
IC237A IC486A
IC482A IC487A-F
Non-Powered Interface Converters
RS-232 to RS-530
RS-422 to V.35
RS-232 to RS-485
RS-232 to RS-422/RS-449
CUSTOMER SUPPORT INFORMATION
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax [phone]
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: [email protected]

NON-POWERED INTERFACE CONVERTERS
Contents
Chapter Page
1. Specifications..........................................................1
1.1 IC237A.............................................................1
1.2 IC482A.............................................................2
1.3 IC486A.............................................................4
1.4 IC487A-F..........................................................6
2. Introduction ...........................................................8
2.1 IC237A.............................................................9
2.2 IC482A...........................................................10
2.3 IC486A...........................................................11
2.4 IC487A-F........................................................13
3. Installation............................................................14
3.1 IC237A...........................................................14
3.2 IC482A...........................................................18
3.3 IC486A...........................................................19
3.4 IC487A-F........................................................24

1
NON-POWERED INTERFACE CONVERTERS
1.1 IC237A
Interface A — RS-232/V.24/V.28, DTE/DCE
selectable
Connectors — DB25 male
Distance — Direct connection to
RS-232/V.24 device
Interface B — RS-530 (RS-422), DTE/DCE
selectable
Connectors — DB25 female
Distance — Direct connection
to RS-530 device
Transmission
Format — Synchronous/asynchronous,
transparent to protocol
Data Rates — Up to 200 Kbps
Cable — 6.5 ft. (2 m)
Input Voltage — Standard RS-232/V.24 driver
±12 volts
1. Specifications

2
NON-POWERED INTERFACE CONVERTERS
Operating
Temperature — 32° to 122°F (0° to 50°C)
Humidity — Up to 90%, noncondensing
Power — No AC power required
Size — 0.9"H x 2.1"W x 4.3"D
(2.3 x 5.3 x 10.9 cm)
Weight — 14 oz. (397 g), including cable
and connector
1.2 IC482A
Interface A — V.35, DTE only
Connectors — V.35 (M-block) male
Distance — Direct connection to V.35
device
Interface B — RS-449/V.36/V.11 (RS-422),
DCE only
Connectors — DB37 female
Distance — Direct connection to
RS-449/V.36 device

3
NON-POWERED INTERFACE CONVERTERS
Transmission
Format — Synchronous, transparent
to protocol
Data Rates — Up to 2.048 Mbps
Cable — 6.5 ft. (2 m)
Input Voltage — Standard RS-422 and V.35
drivers
Operating
Temperature — 32° to 122°F (0° to 50°C)
Humidity — Up to 90%, noncondensing
Power — No AC power required
Size — 0.9"H x 2.1"W x 4.3"D
(2.3 x 5.3 x 10.9 cm)
Weight — 14 oz. (397 g), including
cable and connector

4
NON-POWERED INTERFACE CONVERTERS
1.3 IC486A
Interface A — RS-232, DCE
Connectors — DB25F
Distance — Direct connection
to RS-232 device
Interface B — RS-422/485
Connectors — (5) screw terminals
Distance — Up to 3.75 miles (6 km)
Transmission
Format — Asynchronous only
(data transparent)
Transmission
Mode — Full duplex on 4-wire, half-
duplex on 2- or 4-wire
Control
Signals — Request to Send (pin 4):
Controls transmit carrier, only
if Carrier switch is in the
CNTRL switch position); Clear
to Send (pin 5): Set by CTS
switches to be either open,
high or delayed, after RTS;
Data Set Ready (pin 6) and

5
NON-POWERED INTERFACE CONVERTERS
Data Carrier Detect (pin 8):
Both are set by the DCD+DSR
switch to be either high or
open; Data Terminal Ready
(pin 20): Should be connected
for power considerations only,
to constantly on (high).
Carrier
Control — The Carrier is strap-selectable
to be either continuously on
or switched by RTS.
Data Rates — Up to 38.4 Kbps
Input Voltage — Derived from data and control
or external 6- to 12-VDC 50 mA
Operating
Temperature — 32° to 122°F (0° to 50°C)
Humidity — Up to 90%, noncondensing
Power — Derived from data and control
signals. If signal power is
insufficient, a 6- to 12-VDC
50-mA external power supply
is required. (Call your supplier
for more information.)

6
NON-POWERED INTERFACE CONVERTERS
Size — 0.9"H x 2.1"W x 4.3"D
(2.3 x 5.3 x 10.9 cm)
Weight — 3 oz. (85 g)
1.4 IC487A-F
Interface A — RS-232/V.24/V.28, DTE/DCE
selectable
Connectors — DB25 male
Distance — Direct connection to
RS-232/V.24 device
Interface B — RS-449/V.36 (RS-422),
DTE/DCE selectable
Connectors — DB37 female
Distance — Direct connection to
RS-449/V.36 device
Transmission
Format — Synchronous, transparent to
protocol
Data Rates — Up to 200 Kbps

7
NON-POWERED INTERFACE CONVERTERS
Cable — 6.5 ft. (2 m)
Input Voltage — Standard RS-232/V.24 driver
±12 volts
Operating
Temperature — 32° to 122°F (0° to 50°C)
Humidity — Up to 90%, noncondensing
Power — No AC power required
Size — 0.9"H x 2.1"W x 4.3"D
(2.3 x 5.3 x 10.9 cm)
Weight — 14 oz. (397 g), including cable
and connector

8
NON-POWERED INTERFACE CONVERTERS
The Non-Powered Interface Converters enable
connection between DTE and DCE data- communi-
cations equipment with different interfaces. The
Converters perform both the physical and electrical
conversion between the two interfaces. The circuitry is
designed to provide short-range interface conversion.
NOTE
The devices that are to be connected must be within 6 feet
(2 m) of each other. If greater distances are required, then
an active powered converter must be used.
The Converters operate without AC power, using
ultra-low power from the DTE and DCE equipment’s
data and control signals. Sections 2.1 through 2.4
provide descriptions and typical applications for
each Converter.
2. Introduction