Library-To-Drives; Figure A-9. Terminating Power And Operation Jumpers - StorageTek L700 Service Manual

Figure A-9. Terminating Power and Operation Jumpers (C65214)
1. MPC/MPCL card
2. Terminating power jumper (J18)
3. Terminating power ON position
4. Terminating power OFF position
5. HVD operation setting (J16)
6. Single-ended operation setting (J16 for MPC or LVD/SE for MPCL)
7. Single-ended connection (for MPC) or LVD/SE (for MPCL)–(front)
8. HVD connection–(rear)

Library-to-Drives

The connection between the library MPC/MPCL card and drives is a four-pin,
RS422 interface. The connector for the tape drives is contained within the
quick-disconnect connector for the drive tray. The cable for these lines runs
from the drive connector to the MPC/MPCL card at P/J24 (for drive column 0)
or J241 (for optional drive column 1). If a second drive column exists,
communication signals are multiplexed through the MPM card.
Note: Special consideration must be made for the library-to-drives interface
95846
5
6
1
when Dynamic Worldwide Name is enabled (see
MPCL Replacement" on page
Fourteenth Edition
StorageTek Proprietary
3
4
2
"Implications for an MPC/
2-37)
Library Interfaces
7 8
C65214
A-29