12-Port Ds3 Or E3 Sparing Panel Ntqs31 - Nortel Passport 15000 Hardware Description

300 Chapter 5 Termination panels for FPs

12-port DS3 or E3 sparing panel NTQS31

241-1501-200 5.2S2
The 12-port DS3 or E3 sparing panel NTQS31 is a patch panel that can fan
out connections to and from the network and also provide one-for-six sparing
(back up). That is, when up to seven FPs from the same shelf are
interconnected through a one-for-six sparing panel, one of the FPs can spare
the other six.
The FPs that can use the NTQS31 as a fanout or a sparing panel include
• NTHR23, the "12-port DS3 FP" (page 185)
• NTHR25, the "12-port E3 ATM FP" (page 195)
• NTHR31, the "4-port DS3Ch ATM FP with IMA" (page 175)
• NTHR88 or NTHR89, the "4-port DS3Ch FR FP" (page 166)
• NTHR91, the "4-port DS3Ch FP with AAL1 CES" (page 180)
• NTHW91, the "2-port DS3Ch TDM FP" (page 160)
• NTHW92, the "32-port E1 TDM FP" (page 209)
In addition to the sparing panel information provided in "Basic functionality
and operation of a sparing panel" (page 292), the NTQS31 has the following
distinguishing characteristics.
When the 12-port DS3 or E3 sparing panel is used with 4-port FPs, you must
logically assign the same Pn ports on the panel to the Pn ports on the FP. For
example, if P0 on the first FP is connected to sparing panel P1, then P0 of all
other FPs in the same sparing group must be connected to the other sparing
panel P1s. This is made clear in the FP cabling procedures of 241-1501-240
Passport 15000, 20000 Hardware Installation, Maintenance and Upgrade.
The faceplate has standard female BNC connectors for the signaling ports,
standard female DB9 connectors for the control ports, and proprietary female
8W8 D-sub mini-coax connectors from the FPs. See the figure "A 12-port
DS3 or E3 one-for-six fanout sparing panel NTQS31" (page 302).