Specifications

DDS CSU/DSUs
DDS CSU/DSUs
(up to 64Kbp
(up to 64Kbp
s)
s)
21
21
T
T
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el (toll free): 888-785-7393
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.pulsewan.com
.pulsewan.com
Equipment Order Number
DSU III AR AC ADTN1202011L1
DSU III AR (RM) ADTN1200034L1
DSU III AR DC ADTN1200270L1
DSU III S2W ADTN1200015L2
DSU III TDM ADTN1200063L1
DSU III AR
The ADTRAN DSU III AR is a technologically advanced, high performance
data service unit / channel service unit (DSU/CSU). This unit provides a
reliable interface between the digital data service (DDS) or 4-wire Switched
56 (SW56) network and the customer's data terminal equipment (DTE).
The unit is an all-rate DSU/CSU supporting synchronous and asynchro-
nous data rates on the primary channel and asynchronous data rates on
the secondary channel. The synchronous primary channel rates supported
are 2.4, 4.8, 9.6, 19.2, 38.4, 56, and 64 kbps. Asynchronous data rates
supported are 2.4, 4.8, 9.6, 19.2, 38.4 and 57.6 kbps. Secondary channel
data rates of 75, 150, 300, 600, 1200, and 2400 bps are offered depend-
ing upon the primary channel rate. The DTE interface can be selected as
either EIA-232 or V.35 for all data rates. The secondary channel interface
is EIA-232 and is accessed through a separate connector.
The DSU III S2W is also available which provides an interface between 2-
wire Switched 56 and the customer's data terminal equipment (DTE). The
unit supports both synchronous and asynchronous data rates.
Synchronous rates supported are 2.4, 4.8, 9.6, 19.2, 38.4, and 56 kbps.
Asynchronous data rates are provided from 2.4 to 38.4 kbps and 57.6
kbps. Both EIA-232 and V.35 DTE interfaces are provided for all data rates.
The DSU III TDM is a 4-Port TDM DSU/CSU for 4-wire dedicated DDS
applications. The unit provides four EIA-232 DTE Interfaces for multiplex-
ing up to four devices to a single DDS circuit.
Equipment Order Number
DSU IV ESP ADTN1204011L1
ESP DBU Cards:
4 Wire SW 56 ADTN1204001L1
V.34 Modem ADTN1204002L2
ISDN ADTN1204004L1
ESP Ethernet Card ADTN1204005L1
DSU IV ESP
DSU III AR
DSU IV ESP All Rate/All Purpose SMNP 56/64k CSU/DSU
The DSU IV ESP is an all rate DSU/CSU with embedded SNMP, supporting
services from 2.4 to 64 kbps. Embedded SNMP is available through a
SLIP/PPP port or through a 10BaseT Ethernet port when optioned with the
ESP Ethernet Card. The DSU IV ESP is used in either point-to-point, multi-
point, or virtual circuits such as Frame Relay. The interface can operate
asynchronously up to 57.6 kbps or synchronously up to 64 kbps. The unit also
has a Switched 56 (4-wire) capability where dialing is accomplished from the
front panel, in-band AT commands, or V.25 bis. Both EIA-232 and V.35 DTE
interfaces are provided. The DSU IV ESP also operates as a dedicated DSU
with automatic switched backup in the event of a dedicated line failure. The
addition of dial backup is accomplished through a family of plug-in ESP DBU
cards. There are three ESP DBU cards available: 4-wire Switched 56, V.34
modem, and 1B+D ISDN.
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CSU/DSU
CSU/DSU
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