Nortel Networks TP-1610 SIP user manual Rear Transition Module

Mediant 2000 SIP

2.4Rear Transition Module

The Mediant 2000 RTM includes a PSTN trunks and an Ethernet interfaces.

The Ethernet interface features dual 10/100 Base-TX, RJ-45 shielded connectors for (an active / standby) redundancy scheme providing protection against the event of a failure.

The PSTN interface is provided with a choice of rear panels (1-span, 2-span, 4-span, 8-span or 16-span).

Rear panel with two 50-pin female Telco connectors (DDK 57AE-40500-21D) (shown in Figure 2-3) is required for a gateway equipped with up to 16 E1/T1 spans. Rear panel with RJ-48c

connectors (shown in Figure 2-4) is required for a gateway equipped with 1, 2, 4, or 8 E1/T1 spans. The physical difference between the 1-Span, 2-Span and 4-Span RTMs, and the 8-span RTM is that the RJ-48c ports are depopulated correspondingly.

Figure 2-3: Rear Panel with two 50-pin Connectors for 16 Trunks

123

Table 2-8: Rear Panel with two 50-pin Connectors for 16 Trunks Component Descriptions

Item #	Label	Component Description
1	ETHERNET	2 Ethernet Ports. 2 RJ-45 network connectors.
2	TRUNKS	E1/T1 trunks 9 to 16. 50-pin male Telco connector.
3	TRUNKS	E1/T1 trunks 1 to 8. 50-pin male Telco connector.

Mediant 2000 SIP User’s Manual 24 Document #: LTRT-72504