Specifications

MCC1 Media Gateway
Issue 6 February 2007 209
The following table describes the connectors in a switch node carrier.
Circuit packs and slots that are colored with gray and white replaced the purple- and the
white-colored circuit packs and slots, respectively. A label with a solid gray rectangle indicates a
slot for a port circuit pack. A label with an outlined white rectangle indicates a slot for a control
circuit pack. Each port slot attaches to a 50-pin (25-pair) connector on the rear panel of the
carrier. A cable attaches to each connector and is routed to the cross-connect field. Each slot
that contains a fiber-optic interface circuit pack uses a fiber-optic transceiver on the rear panel
of the carrier. The circuit packs types are EI or SNI.
Terminators on the backplane terminate each end of the processor expansion bus.
The following blank faceplates cover unused circuit pack slots in the carriers to maintain proper
air flow:
● Z100A1, 0.75 inches (1.9 centimeters)
● Z100C, 0.5 inches (1.27 centimeters)
● Z100D, 0.25 inches (0.64 centimeters)
Connector Function
1 (E1) EI connector for a duplicated PN only. EI connector for the cable between
the EI circuit pack in slot 1 and the Switch Node Interface (SNI) circuit
pack in slot 2. Also used for a DS1 Converter circuit pack in slot 1.
2 to 9 and 13 to
20 (E2 to E19 and
E13 to E20)
Fiber-optic cable interfaces to the SNI circuit packs and other circuit packs
that are connected to SN ports or circuit packs in expansion PNs.
21 (E21) Interface to connect the DS1 Converter circuit pack to the cross-connect
field and an SNI circuit pack.
P1 Provides the position indicator of the SN carrier and provides access to
alarm circuits and control circuits.
Table 28: Carrier circuit pack slots
Type Description Server
Port A port slot is colored purple or labeled with a gray
rectangle. A port slot can accept any purple- or
gray-labeled circuit pack.
DEFINITY Server SI
and S8700-series
Media Server
Control A control slot is colored white or labeled with a outlined
white rectangle. A port slot can accept any purple- or
gray-labeled circuit pack.
DEFINITY Server SI