ESCON Channel Attachment

When connected directly to an ESCON channel, the printer can be a maximum distance of 3 kilometers (1.875 miles) from the channel. Either an IBM 9032 or 9033 ESCON Director provides connectivity to additional host systems and also extends the maximum channel length as follows:

• Up to 6 kilometers (3.750 miles) with one 9032 or 9033 ESCON Director
• Up to 9 kilometers (5.625 miles) with two 9032 or 9033 ESCON Directors.

The Extended Distance Feature (XDF) on the 9032 or 9033 ESCON Director also extends the maximum channel length as follows:

• Up to 23 kilometers (14.375 miles) with one Director
• Up to 43 kilometers (26.875 miles) with two Directors.

The IBM 9036 ESCON Remote Channel Extender (Models 1 or 2) extends the interface across common carrier fiber optic connections. You can use one, two, or three 9036 extenders for a maximum distance of 43 kilometers.

Figure 9 shows the details of the above connection options.

Figure 9. Serial Channel Attachment Options

• CC = Common Carrier Fiber Optic Connection (SM)
• SM = Single Mode (Laser Driver - 20 km maximum distance)
• MM = Multi Mode (LED Driver - 3 km maximum distance).