Specifications

Ringing in Series II peripherals 3-47
DMS-100 Ringing System
Ringing in the Remote Line Concentrating Module
The Remote Line Concentrating Module (RLCM) is a repackaged LCM
located remotely from the central office and connected to it by DS-1 links. The
RLCM consists of the following components:
• one LCM
• host interface equipment shelf (contains the ringing generator cards)
• frame supervisory panel
• remote maintenance module
Because only one LCM is provisioned in the RLCM, RG 0 serves unit 0 and
RG 1 serves unit 1. Otherwise, ringing in the RLCM is the same as in the LCM.
Ringing in the Outside Plant Module and OPAC
The Outside Plant Module (OPM) is a repackaged RLCM located remotely
from the host office and connected to the host over DS-1 links. The OPM
consists of the following components:
• LCM
• host interface equipment shelf (contains ringing generator cards)
• environmental control unit
• battery control unit
• rectifiers
• power control unit
• frame supervisory panel
• remote maintenance module
Ringing in the OPM is the same as in the RLCM.
The Outside Plant Access Cabinet (OPAC) is like the OPM but it is cabinetized
for outdoor installations.
Ringing in the Remote Switching Center
The Remote Switching Center (RSC) is a DMS-100 remote that can support
up to 5760 lines. The RSC consists of components:
• remote cluster controller
• remote maintenance module
• line concentrating modules in LCE bays
The call control functions at the RSC are performed by the LCMs. Ringing in
the RSC, therefore, is the same as in the LCM.