Arc Machines 207 - Manual (Page 76)

MODEL 207A AND 207A-1
OPERATION MANUAL
Doc. No. 740044
Rev F
SECTION VIII - OPTIONS
8.3 M-207-EMM EXTERNAL MEMORY MODULE
1. The M-207-EMM is used to TRANSFER a COPY of the library of one M-
207A to another M-207A to maintain identical libraries for multiple system
users. It is also used as a security device to retain a copy of the library which
cannot be changed accidentally.
WARNING
Always turn the power supply OFF before making any cable or connection
changes to the M-207A power supply.
2. To install the EMM, turn the M-207A OFF. The EMM has a connector on
one side of the module. This connector should be inserted into the slot on the
side of the M-207A labeled EMM. It is keyed and can only be inserted one
way. When installed, turn the M-207A ON and perform the desired
TRANSFER or RECEIVE functions as described in Section VI of this manual.
3. When finished with the EMM it should be stored in a secure, dry location away
from any large magnetic or electrical sources.
4. The EMM uses a type of memory that does not require batteries and has an
unlimited shelf life. However, it does have a limited number of erase cycles.
Erasing occurs anytime you are COPYING from a M-207A to the EMM.
Erasing of the EMM memory does not occur when you are TRANSFERRING
from the EMM to the M-207A. Eventually the EMM will require replacement.
However, this is not anything to be particularly concerned with. Even if you
erased the EMM every day (very high usage) it would last 27 years.
5. A copy of the EMM Library can be printed by using the EMM PRINT
function on the SET UP screen, see Section 5.6.1.
CAUTION
The M-227-EMM and the M-207-EMM look alike (although labeled
differently). Do not confuse them and attempt to use an M-227-EMM with a
M-207A.
8.7