Specifications

Section 364-180-202
17
7.6.2 Password Authentication Protocol (PAP) connects one computer to another and sends a plain
text login and password.
7.6.3 Challenge Handshake Authentication Protocol (CHAP) uses a 3-way type handshake process
that uses a dial back routine and encrypted password. In addition the server sends a randomly
generated challenge string to the client, along with its hostname. The client uses the hostname to
look up an appropriate key, combines this with the challenge and encrypts it with a one-way
hashing mechanism. The resulting string is returned to the server, along with the client’s
hostname. The server performs the same computation, as the client, on the challenge string. The
server will only allow the client to connect if its computation result is identical to that received from
the client.
7.6.4 Frame Relay (bridge or routed) is a service that provides cost-efficient data transmission for
intermittent traffic between local area networks or between endpoints in a wide area network. It is
based on packet-switched technology where the protocol does not correct errors but depends on
the end points to detect and request retransmission of bad packets.
8 TECHNICAL ASSISTANCE
If technical assistance is required, contact Charles Industries’ Technical Services Center at
847-806-8500
847-806-8556 (FAX)
800-607-8500
[e-mail] (e-mail)
9 WARRANTY & CUSTOMER SERVICE
9.1 Warranty
Charles Industries, Ltd. offers a 2-year warranty on this product. Contact your local Sales Representative
at the address or telephone numbers below for warranty details. The warranty provisions are subject to
change without notice. The terms and conditions applicable to any specific sale of product shall be
defined in the resulting sales contract.
Charles Industries, Ltd.
5600 Apollo Drive
Rolling Meadows, Illinois 60008-4049
847-806-6300 (Main Office)
847-806-6231 (FAX)
9.2 Field Repairs (In-Warranty Units)
Field repairs involving the replacement of components within a unit are not recommended and may void
the warranty and compatibility with any applicable regulatory or agency requirements. If a unit needs
repair, contact Charles Industries, Ltd. for replacement or repair instructions, or follow the Repair Service
Procedure below.
9.3 Advanced Replacement Service (In-Warranty Units)
Charles Industries Ltd. offers an “advanced replacement” service if a replacement unit is required as soon
as possible. With this service, the unit will be shipped in the fastest manner consistent with the urgency of
the situation. In most cases, there are no charges for in-warranty repairs, except for the transportation