Connecting to a DSSI Subsystem
5-9
The DSSI buses are configured physically by the cable. Check your cables
before beginning installation. If you need additional cables, see Table 5-3.
The overall physical bus length is limited to 24 m (80 ft). Therefore, sys-
tems and devices on the DSSI bus must reside close to each other. One ex-
ternal DSSI cable is required for each bus connection between systems;
two cables are required to connect two systems and an expander cabinet.
Removable terminators must be properly installed. See the DSSI
VAXcluster Installation and Troubleshooting Manual and the KFMSA
Module Installation and User Manual for specific instructions on where
and how to install the terminator(s).
Table 5-3
DSSI Cable Kits
P/N
Qty—Length
Function
CK-SF200-LM
1 108 in (2.7 m)
1 70 in (1.8 m)
For VAX to SF connections. Con-
tains two cables (BC21Q-09 and
BC21R-5L). One kit is required
for each DSSI bus used (maxi
mum of two kits per KFMSA).
CK-KFMSA-LJ
2 48 in (1.2 m)
Internal cable set, connecting
XMI backplane at KFMSA
adapter to XMI I/O bulkhead on
the VAX 6000 system. Used
when the VAX 6000 is the end
node of a DSSI subsystem.
CK-KFMSA-LN
2 48 in (1.2 m)
Internal cable set, connecting
XMI backplane at KFMSA
adapter to XMI I/O bulkhead on
VAX 7000/10000 systems. Used
when the VAX 7000/10000 is not
an end node of a DSSI subsys-
tem.
For more information:
DSSI VAXcluster Installation and Troubleshooting
Manual
KFMSA Module Installation and User Manual
