Nortel Networks Video Gaming Accessories 553-3001-211 Manual De Usuario

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 QPC841 Quad Serial Data Interface card
QSDI cards are housed in the following modules:
NT5D21 Core/Network module (slots 0 through 7)
NT6D39 CPU/Network module (slots 1 through 9, and 13)
NT6D60 Core module (slots 0 through 5)
NT8D35 Network module (slots 5 through 13) 
NT9D11 Core/Network module (slots 0 through 8)
Note: When a QSDI card is installed in an NT6D60 Core module, an 
NT8D34 CPU module, or slot 13 of an NT6D39 CPU/Network module 
in a dual-CPU system, any input/output I/O device connected to the card 
does not function when the CPU in that module is inactive.
Physical description
The QPC841 QSDI card is a printed circuit board measuring 31.75 cm by 
25.4 cm (12.5 in. by 10 in.). The front panel is 2.54 cm (1 in.) thick. See 
Figure 184 on 
Up to four QSDI boards can be used in a system, allowing a total of sixteen 
asynchronous serial ports. The four serial ports on each card are addressed as 
two pairs of consecutive addresses (0 and 1, 2 and 3, and so on up to 14 and 
15). The pairs need not be consecutive. For example: pairs 0 and 1, and 4 and 
5 could be used.
The card front panel has two connectors, J1 and J2. Connector J1 is used for 
port 1 while connector J2 is used for ports 2, 3, and 4. It also has an Enable/
Disable (ENB/DIS) switch and a red LED. The LED indicates that the card 
has been disabled. It is lit when the following occurs:
the ENB/DIS switch is set to DIS
all of the ports on the card are disabled in software
none of the card ports are configured in software