Nortel Networks NN43001-301 manual NT5D97 faceplate, Off

NT5D97 Dual-port DTI2/PRI2 card 35

Two control signals are used to communicate the D-channel link status to the DCH or MSDL. These are:

•Receiver Ready (RR), originating at the DDP2 card, to indicate to the DCH or MSDL that the D-channel link is operational.

•Transmitter Ready (TR), originating at the DCH or MSDL, to indicate to the DDP2 card that the DCH are ready to use the D-channel link.

Table 6 "DCH/MSDL Receiver Ready control signals" (page 35) indicates how the RR control signal operates with regard to the DDP2 status.

Table 6

DCH/MSDL Receiver Ready control signals

RR State	Condition
ON	D-Channel data rate selected at 64 Kbps
	and
	PRI2 loop is enabled
	and
	PRI2 link is not in OOS or Local Alarm mode state
	and
	PRI2 link is not transmitting a Remote Alarm pattern
	and
	PRI2 link is not receiving a Remote Alarm Indication from
	a remote facility
OFF	All other conditions

NT5D97 faceplate

Figure 8 "NT5D97 faceplate" (page 36) illustrates the faceplate layout for the NT5D97 DDP card. The faceplate contains an enable/disable switch; a DDCH status LED; 6 x 2 trunk port status LEDs; and six external connectors. Table 7 "External connectors and LEDs" (page 36) shows the name of each connector, its designation with respect to the faceplate and the name and description of the card it is connected to. Also shown are the names of the LEDs.

Nortel Communication Server 1000

ISDN Primary Rate Interface Installation and Commissioning

NN43001-301 02.03 Standard

Release 5.5 7 December 2007

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