Continental Access SUPERTERM CIC1800, Installation And Service Manual, Page: 84 / 92

UPGRADING
Superterm CIC1800 / CICP1400UL 84
2MB Memory Board
The 2MB memory upgrade requires installing an
additional memory board on top of the Superterm
main circuit board. The standard memory device,
U61, remains installed when the 2MB board is
added.
Mounting the 2MB Memory Board
The 2MB board attaches to the Superterm board
with three standoffs and a 36-pin connector (see
Figure 55).
Two of the standoffs are "snap" type connectors
(see Figure 55, Detail A).
The third standoff is a nylon "screw-on" type
connector (see Figure 55, Detail B).
1)
Remove AC power from the Superterm and
disconnect the 12VAC battery.
2) Discharge static electricity from your body.
WARNING: Before handling the 2MB board,
use a personal grounding strap or make contact
with the Superterm metal chassis to reduce the
possibility of static discharge damaging the
Superterm circuit board and the 2MB memory
board.
NOTE: If the three 2MB board standoffs are
already mounted on the Superterm circuit board,
remove the three standoffs from the 2MB board.
3)
Align the 36-pin SIP header on the 2MB board
over the 36-pin socket on the Superterm circuit
board.
4) Align the three standoffs with the appropriate
boles on the 2MB board.
5) Gently lower the 2MB board onto the
Superterm circuit board.
NOTE: Verify that all 36 pins are properly
aligned in the socket. A bent pin will result in a
faulty installation.
6)
Push the 2MB board down until it is properly
seated against the three standoffs and all the
pins are in their sockets.
7) On the 2MB board, place the SELL jumper to
contact the center post and the right-hand
(OPER) post (see Figure 54).
8) Reconnect the 12VAC battery and restore the
AC power to the Superterm cabinet.
Figure 54 - 2MB Expansion Board Jumper Setting