FEATURES
■ Modular ATM Rate and
Media Converter
■ Connects ATM devices with
different rates and/or
interfaces
■ Supports Available Bit Rate
(ABR) traffic management
for avoiding cell loss
■ Transparent to ATM
protocols
■ Modules available for
the following electrical
interfaces:
– 2 Mbps (E1) over
Coax/UTP
– 34 Mbps (E3) over Coax
– 45 Mbps (T3) over Coax
– 155 Mbps (STS-3c) over
Cat-5 UTP
– 155 Mbps
(STS-3c/STM-1)
over Coax
■ Supports optical interfaces:
Single mode or Multimode
– 155 Mbps STS-3c/STM-1
(SONET/SDH)
■ Complies with ATM forum
specifications
DESCRIPTION
■ The ARC-101, ATM Rate and
Media Converter, provides
transparent rate and media
conversion between two ATM
interfaces by extracting ATM cells
from one interface and sending
them over the second one.
■ The ARC-101 connects devices
with dissimilar ATM interfaces.
Alternatively, the ARC-101 can be
used in ATM testing environments,
enabling module interchangeability
according to the devices being tested.
■ A large internal FIFO is used for
rate adaptation between the two
interfaces and for handling the bursty
nature of the ATM traffic. Special
circuitry is responsible for closing the
ATM flow control loop according to
Available Bit Rate (ABR) traffic
management specifications in order to
avoid FIFO overflow
■ The ARC-101 supports a wide
variety of ATM data rates and media
types. These include: E1, E3, T3 and
STS-3c/STM-1 over optical and
electrical interfaces.
■ The modular construction and
software based design of the
ARC-101 enables easy migration to
new ATM physical interfaces.
■ Built-in diagnostics, configuration
and statistics including physical layer
alarm surveillance/ performance
monitoring and ATM layer statistics
are provided via the monitor
connector (RS-232 ASCII terminal).
■ The ARC-101 is supplied as a
stand-alone unit. Special hardware for
mounting one or two units in a
19" rack using minimal height of 1U
can be ordered separately.
(see Ordering).
ARC-101
ATM Rate and Media Converter
1996 RAD Data Communications Ltd. 334-100-08/96
SPECIFICATIONS
■ ■ Data Rate
Up to 155 Mbps
GENERAL
■ ■ Indicators
PWR ON when unit is powered
FLT BLINKS when self test
fails
ATM ON when active ATM
connections on port
SYNC ON when the port is
synchronized (no alarm)
OFF during local alarm
BLINKS during remote
alarm
■ ■ Control Interface
RS-232/V.24 at 9600 baud with
RJ-45 connector
■ ■ Power
25 Watts, 100-230 VAC, 47-63 Hz
or -48 VDC
■ ■ Physical
Height: 4.4 cm / 1.8 in (1U)
Width: 21.6 cm / 8.5 in
Depth: 29.8 cm / 11.7 in
Weight: 1.1 kg / 2.8 lb
Optical Module Characteristics
■ ■ Environment
Temperature: 0-45°C/32-113°F
Humidity: Up to 90%,
non-condensing
Radiation Suppression
Complies with FCC
part 15, subpart J,
Class A
Complies with
EN55022, Class A
ORDERING
ARC-101/#
ATM Rate and Media Converter
ARC-M/@
Interface module for ARC-101
# Specify power supply:
AC for 100-230 VAC
DC for -48 VDC
@Specify module name:
(refer to above tables)
RM-1
Hardware for mounting one unit in a
19”rack
RM-2
Hardware for mounting two units in a
19”rack
Module
Name Protocols
Supported Fiber Type
(Wavelength) Connector
Type Dynamic
Range Optica
lSensitivity
SC13M/155 STS-3c
STM-1 1300 nm,
(multimode) Duplex SC 17 dB -18 dBm -31 dBm
ST13S/155 STS-3c
STM-1 1300 nm,
(single mode) ST 16 dB -18 dBm -31 dBm
ST13L/155 STS-3c
STM-1 1300 nm,
(laser diode) ST 16 dB -12 dBm -31 dBm
Electrical Module Characteristics
Module
Name Protocols
Supported Cable
Type Connector
Type Range/
Budget Line
Code Impedance
(ohms)
UTP/155 STS-3c/STM-1 UTP Cat 5 Shielded RJ-45 100 m NRZ 100
CX/155 STS-3c/STM-1 Coax BNC 12.7 db CMI 75
T3 T3 Coax BNC 150 m B3ZS 75
E3 E3 Coax BNC 150 m HDB3 75
E1 E1 Coax (UTP) BNC (RJ-45) 12 dB HDB3 75 (120)
E1/LTU E1 Coax (UTP) BNC (RJ-45) 34 dB HDB3 75 (120)
APPLICATION
Specifications are subject to change without prior
notification
