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P/N 480-0005-00-15 2-26
Chapter 2: Hardware Components
If a connected Span LED line is unlit, see Chapter 8: Diagnostics/Maintenance for a detailed description and
troubleshooting techniques.
Hot Swap. A lit blue light indicates that the T1 WAN card is not in service.
Diag Port. This port is for internal Quintum use only.
RJ-48 Input/Output Ports. The eight RJ-48 connectors on the rear of the T1 card (the transition module) are
used to provide network access; they route signals between the T1 and a piece of network equipment (i.e.,
PBX or PSTN). The input/output signals are listed in Table 2-7.
Figure 2-23 RJ-48 Port Pin Order
Table 2-7 Input/Output Signals for WAN T1 Card RJ-48 Ports
Port# Pin Signal Definition
1-8 1 RR - Receive Ring
1-8 2 RT + Receive Tip
1-8 3 N/C Not Connected
1-8 4 TR - Transmit Ring
1-8 5 TT + Transmit Tip
1-8 6 N/C Not Connected
1-8 7 Chassis Ground Chassis Ground
1-8 8 Chassis Ground Chassis Ground