Noise Levels512• 20 ft. RS-232• 40 ft. RS-232RISC System/6000: For RS-232 attachment to the IBM RISC System/6000, the following are required:• IBM Async cable EIA-232/V.24• Printer/terminal interposer EIA-232• Serial Cable Kit (PN 12H1204)Coax/Twinax Interface Feature: Contact your IBM service representative for attachment requirements.Printing RatesThe printing speed of text is measured in lines per minute (lpm), and is a function of the selected font and the vertical dotdensity. Printing speed is independent of the number of characters configured in the character set repertoire. Print rates forlines containing attributes such as bold or emphasized printing, superscripts, subscripts, or elongated attributes will decrease tonot less than half the rates of the font without such attributes. The exact print rate of lines containing these attributes dependson the specific print job, but software maximizes the throughput by dynamically determining which dot rows contain adjacentdots and must be printed in two strokes. Table 8 and Table 9 list nominal printing rates for 6500-v printers.The reverse paper feed capability allows the printing of multiple densities on a single line. This is useful in printing forms andtext together or in mixing different fonts on a print line. Use of multiple densities and reverse paper feed also affects throughput.
