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9/21/2007
#17453

724-746-5500

   blackbox.com

FEATURES

• Supports bidirectional synchronous

communication at 64 kbps.

• Point-to-point distance of up to 

5250 feet (1600.2 m) on 24 AWG 
twisted pair.

• Complies with CCITT/ITU G.823 jitter-

control specifications.

• Includes a power supply.

• Models available for RS-232, V.35,

and X.21 interfaces.

• Includes transformer isolation and 

surge protection.

Reach 64-kbps speeds by linking an RS-232 PC to your G.703 network.

OVERVIEW

Connect your V.35, RS-232, or X.21 device to a 64-kbps

G.703 network with these Compact Codirectional G.703
Converters.

Three models are available:

• The IC700A plugs directly into an RS-232 DTE and is

equipped with a male DB25 connector.

• The IC701A plugs directly into a V.35 DTE and features

a male M/34 connector.

• The IC702A plugs into an X.21 DTE and has a male

DB15 connector at the end of a 6-foot (1.8-m) cable.

All versions come with an RJ-45 jack for 120-ohm twisted-

pair network termination.

The converters incorporate local loopback and G.703

loopback diagnostic modes. And for protection against
ground loops and transient surges, the converters have
both transformer isolation and surge protection.

Place your V.35, RS-232, or X.21 device up to 5250 feet

(1600.2 m) away from the G.703 network (using 24 AWG
twisted-pair cable).

The converter conforms to common CCITT jitter-control

standards.

Clocking options are internal, external, or network.
An external power supply is included with the converter. 

Compact Codirectional G.703

Converter, RS-232 (V.24)

(IC700A)

RS-232 PC

G.703 

Network

TECH SPECS

Speed — 64 kbps
Applications — G.703/64-kbps co-directional PCM network or CSU/DTE

conversion to CCITT/ITU V.24, CCITT ITU V.35, or CCITT/ITU X.21

Compliance — FCC Class A, EN 55022, EN 50082-1, EN60950, CTR 14
Clocking — Internal, external, or network
Line Encoding — AMI
Isolation — 1500 VRMS isolation, transformer coupled
Jitter Performance — CTR 14, G.823
G.703 Interface — Symmetrically balanced pairs, 4 wire, 120 ohms

terminated to RJ-45 female connector

G.703 Input Signal Level — 2.0V differential into 120 ohms, nominal
Maximum Cable Loss — 0 to -10 dB
Device Response Time — 100 ns
Clamp Voltage — 8.5V ±1V
Distance (Maximum) — Up to 5250 ft. (1600.2 m), point-to-point, 

on 24 AWG twisted-pair cable

Connectors — IC700A: (1) DB25 male, (1) RJ-45; 

IC701A: (1) M/34 male, (1) RJ-45; 
IC702A: (1) DB15 male, (1) RJ-45

Indicators — (2) LEDs: (1) TM, (1) SYNC
Temperature Tolerance — 32 to 140°F (0 to 60°C)
Humidity Tolerance — 5 to 95%, noncondensing
Maximum Altitude — Up to 15,000 feet (4572 m)
Power — 115-VAC, 60-Hz external power supply; 115–230-VAC version

available on request

Size — IC700A: 0.7"H x 2"W x 5"D (1.8 x 5.1 x 12.7 cm); 

IC701A–IC702A: 0.7"H x 2"W x 3.4"D (1.8 x 5.1 x 8.6 cm)

Item

Code

Compact Codirectional G.703 Converters

RS-232 (V.24), DTE

IC700A

V.35, DTE

IC701A

X.21, DTE

IC702A

You might also need cable…

CAT5 Solid-Conductor Cable

EYN737MS

Compact Codirectional G.703 Converter

(1) 115-VAC, 60-Hz external power supply

A user’s manual

WHAT‘S INCLUDED

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