IBM 7131-105 User Manual page 56

3.4.2.3 Connecting Two 7131 Storage Towers to One System
Use the following procedure to connect two 7131 Storage Towers to one system (see Figure 3-10).
Note: This configuration requires a SE/DIFF card and a terminator for each 7131 Storage Tower.
Figure 3-10. Two 7131 Storage Towers Connected to One System
1. DANGER
+--------------------------------------------------------------------+
¦ To prevent a possible electrical shock during an electrical storm, ¦
¦ do not connect or disconnect cables or station protectors for
¦ communications lines, display stations, printers, or telephones.
¦ (RSFTD003)
+--------------------------------------------------------------------+
2. DANGER
+--------------------------------------------------------------------+
¦ To prevent a possible electrical shock from touching two surfaces
¦ with different electrical grounds, use one hand, when possible, to ¦
¦ connect or disconnect signal cables.
+--------------------------------------------------------------------+
3. Set the SE/DIFF address jumper on the second 7131 Storage Tower (see "Setting the Address Jumper for a Second 7131 Storage
Tower" in topic 3.2).
4. Connect the tower-to-tower SCSI cable to the first 7131 Storage Tower, in the lower SCSI connector (see Figure 3-11).
5. Connect the system SCSI cable to the first 7131 Storage Tower, in the upper SCSI connector.
7131-105 User's Guide
Connecting Two 7131 Storage Towers to One System
(RSFTD004)
¦ Copyright IBM Corp. 1995, 1996
3.4.2.3 - 1
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