Service; General Information; Features; Description - Patton electronics 2121 User Manual

1.3 SERVICE

All warranty and non-warranty repairs must be returned freight
prepaid and insured to Patton Electronics. All returns must have a
Return Materials Authorization (RMA) number on the outside of the
shipping container. This number may be obtained from Patton
Electronics Technical Support at:
Tel: (301) 975-1007
Email: http://www.patton.com
www: support@patton.com.
NOTE:
Packages received without an RMA number will
not be accepted.
Patton Electronics' technical staff is also available to answer any
questions that might arise concerning the installation or use of your
Model 2121/2135C. Technical Support hours: 8AM to 5PM EST,
Monday through Friday.
WARNING!
This device is not intended to be con-
nected to the public telephone network.
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2.0 GENERAL INFORMATION

Thank you for your purchase of this Patton Electronics product.
This product has been thoroughly inspected and tested and is warrant-
ed for One Year parts and labor. If any questions or problems arise
during installation or use of this product, please do not hesitate to con-
tact Patton Electronics Technical Support at (301) 975-1007.

2.1 FEATURES

- Integral V.35 Male to 10BaseT Ethernet (Model 2135C)
- Integral X.21 Male to 10BaseT Ethernet (Model 2121)
- Industry standard, shielded RJ-45 10BaseT connection
- 802.3 Ethernet supported by Transparent LAN bridging
- PPP Bridging Control Protocol (RFC 1638) with auto
detection for compatibility with existing Patton Bridge
Modules
- 4096 MAC address table
- 1 MB RAM; 128KB FLASH expandable to 512 KB
- Throughput latency of 1 frame
- Automatic LAN MAC address aging
- Nine LEDs monitor power, LAN, and DTE Interface sig-
nals

2.2 DESCRIPTION

The Patton Model 2121/2135C MicroBridge is an Ethernet
Bridge that provides LAN extension when used in conjunction
with a X.21 or V.35 DCE device, such as a DSU/CSU, NTU,
or router. The Model 2121/2135C performs transparent
Ethernet bridging and functions at the MAC level, thus is
transparent to higher level protocols such as TCP/IP, DECnet,
NETBIOS, and IPX network protocols. Only broadcast, multi-
cast, or frames set up for peered LAN are forwarded. The
Model 2121/2135C is 802.3 Ethernet compliant and supports
PPP Bridging Control Protocol (RFC 1638) on the DTE side.
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