Mitel SX 50 Main Control Card I -
Slides in the back of the card
file forming a backplane for all the peripheral cards. Provides DTMF receivers,
central processing unit, RS 232 Interface memory module interface, attendant
console interface. Main Control Card 1 does not
include a music on hold/ paging interface directly on the unit. To have
these options a universal card (part# 9104-040-000-SA) must be installed
along with a music on hold/page module (part# 9104-042-001-SA) piggybacked
on the universal card.

- Slides in the back of the card
file forming a backplane for all the peripheral cards.
- Provides DTMF receivers,
central processing unit, RS 232 Interface memory module interface, attendant
console interface.
- Main Control Card 1 does not
include a music on hold/ paging interface directly on the unit. To have
these options a universal card (part# 9104-040-000-SA) must be installed
along with a music on hold/page module (part# 9104-042-001-SA) piggybacked
on the universal card.
Compatibility:
The most recent relaese of this card
is Main Control Card II (part#9104-010-100-SA , which includes built-in music on
hold and page. Mitel SX50 Main Control Card I is compatible with the following
systems: