Cabling For Systems Using Sasi Connections; Sasi Cabling (Primary Processor To 80 Megabyte Storage Sru) - Northern Telecom DNC-50 Installation Manual

Cabling for Systems Using SASI Connections

There are two cabling layouts for SASI systems. One, the usual configuration,
involves only the Primary Processor and the 80 Megabyte Mass Storage SRU. The
second layout is used when the system includes the optional 350 Megabyte Mass
Storage SRU.

SASI Cabling (Primary Processor to 80 Megabyte Storage SRU)

Do not power up the system until the Primary Processor and Mass Storage
SRUs have been interconnected. If disconnecting this cable, power down the
system first.
(1) If the rear door of the cabinet is closed, open it to access the rear panels of the
(2) Locate the 609 mm (2 ft) SASI cable, which is typically shipped in the same
(3) Push one end of the SASI cable on to the 50-pin connector at the upper left of
(4) Tighten the two screws on the connector with a flat-blade screwdriver.
(5) Push the other end of the extender cable onto the 50-pin connector on the rear
(6) Locate the 1.8 m (6 ft) SASI cable, which is typically shipped in the same
SRUs. The Primary Processor should be located directly above the Mass
Storage SRU. (You can check their locations from the front of the cabinet, if
you wish, as each SRU is labeled on its front panel. Also, the product code is
located on a label on the rear panel of each SRU.)
packing carton as the Mass Storage SRU.
the Primary Processor's rear panel, as viewed from the rear. The connector is
keyed so that it connects only one way. (See Fig. 8-3.)
panel of the Mass Storage SRU. The connector is keyed so that it connects only
one way.
packing carton as the 350 Megabyte Mass Storage SRU.
Installing the Cross-Connect Panel 15
- CAUTION -
Practice 450-1011-201