Hardware Installation Manual 56 Document #: LTRT-94720
Mediant 3000
5.3 Cabling RTM-8410 Interfaces
This section describes how to connect the interfaces provided on RTM-8410:
Connecting to E1/T1 PSTN interfaces – see Section 5.3.1 on page 56
Connecting Ethernet interfaces to OAMP and Control IP networks – see Section 5.3.2
on page 60
Connecting to GbE interfaces – see Section 5.3.3 on page 62
Note: This section is applicable only to devices housing TP-8410 / RTM-8410.
5.3.1 Connecting to E1/T1 PSTN Interfaces
RTM-8410 provides SCSI connectors for interfacing with the E1/T1 trunks.
5.3.1.1 Number / Type of SCSI and Number of RTM-8410 per Span
Configuration
The number and type of SCSI connectors, and number of RTM-8410s depends on the
supported E1/T1 spans, as listed in the table below:
Table 5-3: SCSI Connector Type and Trunk Numbers per Spans Configuration
Spans Slot # SCSI Connector Trunks
16
2 100-Pin Female 1-16
42
2 100-Pin Female 1-25
68-Pin Female 26-42
4 100-Pin Female not used
68-Pin Female not used
84
2 100-Pin Female 1-25
68-Pin Female 26-42
4 100-Pin Female 43-67
68-Pin Female 68-84
Note:
For 42 and 84 spans, the device is supplied with two RTM-8410s pre-installed in
the chassis. However, the second RTM-8410 (housed in Slot #4) is used only if the
Software Feature Key, installed on the device, supports more than 42 trunks (i.e., up to
84 trunks).
To interface with the SCSI connectors, you need to provide (i.e., not supplied) the following
items:
Cable: 26 AWG (100 to 120 Ohm) cable
Connector: see the table below:
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