Black Box IC940A-F User manual

CUSTOMER
SUPPORT
INFORMATION
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Mail order: Black Box Corporation, P.O. Box 12800, Pittsburgh, PA 15241
JANUARY 1995
IC940A-F
IC940A-M
V.35/X.21 Bi-Directional
Interface Converter

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V.35/X.21 BI-DIRECTIONAL INTERFACE CONVERTER
2
Contents
Chapter Page
1. Specifications....................................................................................3
2. Introduction.....................................................................................4
3. Installation .......................................................................................5

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V.35/X.21 BI-DIRECTIONAL INTERFACE CONVERTER
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1. Specifications
Cable length between connectors —
6.5 ft. (1.9 m)
Power —interface-powered V.35
pins C, D, E, or F or X.21 pins 3,
10, or 15
Size —V.34 connector: 0.9"H x 2"W
x 2.5"D (2.3 x 5.1 x 6.4 cm),
DB15 connector: 1"H x 1.8"W x
2.8"D (2.5 x 4.6 x 7.1 cm)
Weight —0.9 lb. (0.4 kg)
Data Rates —Up to 2048 kbps
Transmission Format —
Synchronous, transparent to
protocol
Transmission Mode —Full-duplex
Temperature —32° to 122° F
(0° to 50° C)
Humidity —Up to 90%,
noncondensing
Interface Connections —
V.35: IC940A-M M/34 male
(configured as DCE),
IC940A-F M/34 female
(configured as DCE);
X.21: IC940A-M, IC940A-F:
DB15 male (configured as DTE)

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V.35/X.21 BI-DIRECTIONAL INTERFACE CONVERTER
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2. Introduction
The V.35/X.21 Bi-Directional
Interface Converter performs bi-
directional conversion of both the
physical and electrical specifications
of a V.35 device to those of an X.21
device.
Two models are available for
connecting a V.35 DTE to an X.21
DCE:
• IC940A-M: Male V.35 (DCE) to
Male DB15 (DTE)
• IC940A-F: Female V.35 (DCE)
to Male DB15 (DTE)

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V.35/X.21 BI-DIRECTIONAL INTERFACE CONVERTER
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3. Installation
There are no internal jumpers or
switch setting to configure. The
converter is transparent to baud
rate and protocol and contains only
passive components.
A typical application appears in
Fig. 3-1 .
Choose a location so that you can
connect the devices directly to the
converter. The units are designed
to operate over short distances. We
do not recommend attaching
additional cables to the ends of the
converter.
Connect the M34/V.35 DCE
connector directly to the DTE
equipment. Connect the
DB15/X.21 connector directly to
the DCE equipment.
Fig. 3-1. Typical Application.
Bridge
V.35
M/34 X.21
DB15
X.21 Modem