EM525 AT Ethernet Adapter Data Sheet

Key Features:

-16-bit I/O mapped AT adapter for PC workstations
-Intel® 82595 TX LAN coprocessor chip
-64K on-board RAM
-Completely software configurable
-Optional universal boot PROM (RPL)
-Combo version supports all three cable types,also BNC and TP only versions
-Drivers for all popular networks
-Limited lifetime warranty

Cogent offers Ethernet products to meet every adapter and repeater environment, including 10BASE-2, 10BASE-T, 100BASE-TX, 
100BASE-T4, and
100BASE-FX (fiber).

EM525 AT is the optimal price/performance Ethernet adapter for Industry Standard Architecture
(ISA) bus PC workstations. With its high throughput and efficient CPU utilization, the EM525
AT adapter is the perfect workstation complement to your high performance eMASTER+ server
adapters. And, EM525 AT is optimized for 486 and Pentium workstations for maximum performance
advantages.

Workstation performance to match your server

Because a network connection is only as fast as its slowest point, even a high performance
network adapter in a superserver can’t whip a network with slow workstation adapters into
shape. Recognizing this fact, Cogent designed its entire line of eMASTER+ adapters with total
system performance in mind. With the EM525 AT adapter, you can be sure that your workstation
adapters will always be able to keep up with your server, no matter how severe the network
load. EM525 AT is the ideal workstation companion board to Cogent’s eMASTER+ EISA and PCI
server adapters, and enables networks to benefit from Cogent’s Predictive Pipelining
technology. EM525 AT maintains high system throughput in any sized network and provides
an extra advantage for environments running resource-intensive applications requiring high
network bandwidth. Unlike other adapters which show significant degradation in performance
even under moderate loads, EM525 AT is relatively insensitive to load. With throughput that
can exceed 900 KBytes/sec., EM525 AT is fast enough to handle data transfers at full cable
bandwidth performance that can make you and your network more productive.

Easier to use

EM525 AT is a jumperless design that is easy to install and customize to your environment. A software
installation utility automates the installation process. Once EM525 AT is installed, board level
user diagnostics fully test your configuration to verify proper operation. EM525 AT gives you
a choice of models, including BNC only, twisted pair only, and combo versions. With on-board
connectors for thick coax, thin coax (Cheapernet), and twisted pair cabling, EM525 AT Combo
supports all three Ethernet cable types on a single adapter so you can easily adapt to your
company’s future network needs with no added expense.

Product Specifications

Systems Supported
IBM PC/AT and compatible ISA based machines

Bus Interface
16-bit programmed I/O

Ethernet Controller
Intel 82595 LAN coprocessor chip

Buffer Memory
64K, I/O mapped

Hardware Interrupts
IRQ 3, 5, 9, 10, 11

PROM Base
C800h, CC00h, D000h, D400h, D800h, DC00h, NO PROM

Base I/O Address
300h, 310h, 320h, 330h, 340h, 350h, 360h, 
370h, 380h, 390h, 3A0h, 3B0h, 3C0h, 
3D0h, 3E0h, 3F0h  


Reliability
Calculated MTBF >100,000 hours

Power Requirements
+ 5 volts @ 2.0 Amp max.
+12 volts (for MAU only)

Environmental Operating Range
Temperature: 0° C to 50° C
Relative Humidity: 5% to 85% non-condensing
Altitude: 3000m maximum

Interface Connections
BNC, AUI, RJ-45

Dimensions
8.1" x 5"

Standards Compliance
Ethernet IEEE 802.3 10BASE-T
Ethernet IEEE 802.3 10BASE-2
Ethernet IEEE 802.3 10BASE-5
FCC Class B Radiation compliant
UL rated PCB

Drivers Available
3.5" diskette
NetWare 2.x, 3.x, 4.x, NetWare Lite, Personal NetWare, LAN Manager, SCO UNIX, VINES, 
Artisoft LANtastic, Windows for Workgroups, Windows NT, Windows 95, DEC PATHWORKS for DOS,
FTP PC/TCP, LAN WorkPlace, NEXTSTEP

Diagnostic LEDs
Link Integrity (for 10BASE-T)
Network Activity

Warranty
All eMASTER+ series adapters are protected by a limited lifetime warranty
<pre>
Ordering Information
<pre>
Order Number    Connectors
EM525 C             AUI, BNC, UTP
EM525 C/5  5-pack version of EM525 C
EM525 C/20     20 pack version of EM525 C
EM525         BNC
EM525/5              5-pack version of EM525
EM525/20 20 pack version of EM525
EM525 TP        UTP
EM525 TP/5   5-pack version of EM525 TP
EM525 TP/20   20 pack version of EM525 TP

Made in U.S.A.

Cogent Sales                    Cogent Corporate                  Cogent Europe
15375 SE 30th Place, Suite 310   175 West St. P.O. Box 926         Rosenstraße 7
Bellevue, WA  98007  U.S.A.      Friday Harbor, WA  98250  U.S.A.  80331 Munich Germany
Tel (206) 603-0333                Tel (360) 378-2929                Tel [49]89/231138-88
Fax (360) 378-2882                Fax [49]89/231138-11              Fax (206) 603-9223
Toll-free in U.S. 1-800-426-4368   
E-mail sales@cogentdata.com      


1994 Cogent Data Technologies, Inc. All rights reserved. Printed in U.S.A.
Product specifications are subject to change without notice.
Cogent is a registered trademark and eMASTER+, Predictive Pipelining, and Quartet
are trademarks of Cogent Data Technologies, Inc. All other trademarks are the property
of their respective owners.