User`s manual

Table Of Contents
SIP User's Manual 2. Physical Description
Version 5.0 31 October 2006
2.2.2 Rear Transition Module
The RTM includes PSTN trunks, an Ethernet interface, and an optional RS-232 connector
(available only on the 1, 2 and 4-span configuration).
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 available in 1-span, 2-span, 4-span, 8-span, or 16-span rear panels.
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 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
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 female Telco connector.
3
TRUNKS
E1/T1 trunks 1 to 8. 50-pin female Telco connector.
Figure 2-4: Rear Panel with 8 RJ-48c Connectors for 8 Trunks
Table 2-9: Rear Panel with 8 RJ-48c Connectors for 8 Trunks Component Descriptions
Item # Label Component Description
1
ETHERNET
2 Ethernet Ports. 2 RJ-45 network connectors
2
TRUNKS
8 E1/T-1 Spans. 8 RJ-48c trunk connectors
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