COM20020I_0609 Datasheet, PDF (23/69 Pages) SMSC Corporation – 5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM

5Mbps ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
CABLE TYPE
RG-62 Belden #86262
RG-59/U Belden #89108
RG-11/U Belden #89108
IBM Type 1* Belden #89688
IBM Type 3* Telephone Twisted
Pair Belden #1155A
COMCODE 26 AWG Twisted
Pair Part #105-064-703
Table 1 - Typical Media
NOMINAL
IMPEDANCE
ATTENUATION PER 1000 FT.
AT 5 MHz
93Ω
5.5dB
75Ω
7.0dB
75Ω
5.5dB
150Ω
7.0dB
100Ω
17.9dB
105Ω
16.0dB
*Non-plenum-rated cables of this type are also available.
Note: For more detailed information on Cabling options including RS-485, transformer-coupled RS-485 and Fiber Optic
interfaces, please refer to TN7-5 – Cabling Guidelines for the COM20020I 3V ULANC, available from Standard
Microsystems Corporation.
SMSC COM20020I 3.3V Rev.E
Page 23
DATASHEET
Revision 09-11-06