PortMaster ISDN Base
Units
Questions and Answers
Q. What are Lucent's new ISDN products?
A: Lucent offers two new ISDN products: an ISDN base version of the popular
PortMasterTM 2E Communications Server and the new PortMaster 2i Communications
Server. The ISDN base PortMaster 2E comes standard with ten ISDN channels, one
Ethernet port (AUI, BNC, 10BaseT), one 115.2 Kbps asynchronous serial port, and two
expansion slots. These slots can be populated with 10-channel ISDN
expansion modules or 10-port asynchronous modules. The PortMaster 2i is a fixed
configuration unit with 10 ISDN channels, one Ethernet port (AUI, BNC, 10BaseT), and
one 115.2 Kbps asynchronous serial port.
Q. Are these products available in U and S/T interface versions?
A: Yes. The U interface versions feature fully integrated NT1s (network termination
devices) for each Basic Rate Interface (BRI) and are for use in North America. The S/T
interface versions connect to external NT1s and are typically for use outside of North
America (although they support North American switch standards).
Q. What is the sixth RJ-45 port on the PortMaster 2i and 2E ISDN base unit for?
A.The sixth port is a high-density ten-pin RJ-45 jack (labeled "HD") which can be used to
run 10 B-channels (5-BRIs) over one cable direct to a punchdown block.
includes a 20' high density cable. This HD port is only included on the U interface
products.
Q. What is the maximum number of B-channels which can be combined on a
PortMaster 2E or PortMaster 2i?
A. Any PortMaster with ISDN interfaces can use Multilink PPP (RFC 1717) or
Lucent's own Multi-line Load Balancing to combine any number of available ISDN
B-channels on a single chassis. A PortMaster 2i can combine a maximum of 10
B-channels and the PortMaster 2E (with two additional ISDN expansion cards) can
combine up to 30 B-channels into one high-speed WAN link.
Q. Is the T1/E1 WAN port ("R" version) option available for these products?
A. The T1/E1 WAN port is not available on these new ISDN PortMasters. It is still
available on the fixed configuration 10-port PortMaster (2R) and on the expandable
asynchronous base chassis PortMaster (PM-2ER).
Q.Are these products rackmountable?
A. Yes. Both products come pre-drilled and include the necessary brackets for installation
in standard 19" equipment racks.
Q. What can the "C0-DIAG" (console diagnostic) port be used for on the
PortMaster 2E and 2i?
A.This port is an asynchronous port that can handle up to 115.2 Kbps of throughput. By
connecting an external V.34 modem, this port can provide dial backup to your ISDN lines
and provides the capability for a network administrator to remotely configure and monitor
the PortMaster. It can also be used as a traditional dial-in port offering InterNetworking Systems to
individuals connecting to LAN resources or to the Internet.
Q. What ComOS version is required to operate these new ISDN products?
A. The new PortMaster 2E ISDN base unit and the PortMaster 2i come pre-loaded with
ComOSTM version 3.3.2.
Q. Can the PortMaster 2E ISDN base be ordered preconfigured with expansion
boards like the standard PM-2E (PM-2E-20, PM-2E-30)?
A. The ISDN base PortMaster 2E cannot be ordered with pre-installed expansion boards
from . The ISDN base PortMaster 2E is an individually orderable part. The two
expansion slots can be filled with 10-port asynchronous or 5-BRI modules (MOD cards)
which are also individually orderable. The MOD cards should be installed by the reseller
as a value added service for the end-user.
Q. Is the standard asynchronous base PortMaster 2E still available?
A. Yes, the standard 10-port asynchronous base PortMaster 2E (PM-2E) will continue to
be available. This unit accepts ISDN expansion modules as well.
Q. What are these product's ordering codes and list prices? When are they
available?
A. The PortMaster 2E ISDN base option's list price is US$3895. Ordering codes are
PM-2E-10I-U and PM-2E-10I-ST. The PortMaster 2i Communications Server list price
is US$3495. Ordering codes are PM-2i-U and PM-2i-ST. Products will be available in
mid-June.
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