Nortel Networks Circuit Card - Manual (Page 507)

NT7D16 Data Access card Page 507 of 906
Circuit Card Description and Installation
An upgraded backplane has three shrouds for each card slot. A backplane that
cannot be upgraded has only two shrouds for each card slot.
Port configuration
Figure 97 on page 508 shows the port configurations for both the RS-232-C
and RS-422 ports. The software configuration requirements for the DAC are
shown at the end of this chapter. Responses to the prompts listed are required.
Depending on the configuration, ensure that the option plug is set for RS-232
or RS-422.
Table 167
System option compatibility with the DAC
System option
Backplane
code
Backplane
release Upgrade
Maximum no.
of ports/DAC
supported
Large Systems NT8D3701 3 and below No 4
Large Systems NT8D3701 4 and above Yes 6