Nortel DMS-100 Series Maintenance Manual page 56

1-44 Maintenance overview
RMM connection with host and LCA through LCC
The RMM uses DMS-X protocol to communicate with the host, using the
LCC interface to the DS-1 links. The RMM can accommodate up to 14
maintenance and service circuit cards. These cards vary in type and are
selected to meet provisioning requirements.
RMM shelf configuration
The RMM shelf has only 20 slots, as opposed to 25 in the HIE. The two
leftmost slots of the RMM (01, 02) are assigned to the DS30A interface and
control cards. Slots 17–18 and 20 on the far right of the shelf contain two
types of power converters required in the RMM. The remainder of the shelf
(slots 3–16) is assigned to service circuit cards provisioned to meet office
engineering requirements. The following figure, "Remote maintenance
module shelf layout," shows an example of card selections for a typical
RMM.
297-8381-550 Standard 02.02 April 1999
DS30A
link pair
DS-1 links
Host
RMM
Link control
DS30A links
cards
LCA-0
LCA-1