Nortel RLC Installation And Administration Manual page 374

Planning forms
Reach Line Card
System expansion worksheet
Number of DSP application modules needed (continued)
(step 6 continued) If the result of equations A or B is a fraction, round up to the
nearest whole number. For example, for a simultaneous combination of 2 fax
calls, 17 remote service telephone calls and 0 PSTN connections for 911x, the
equations are as follows:
(For 17 remote service calls, the equation works out to 4.25 and rounds up to
five.)
A remote network supporting 2 fax and 17 remote service telephone calls
simultaneously requires two DSP application modules. If the RLC supports
more than one remote site, remember that its DSP application modules must
support the voice processing for all sites combined.
7 Record the number of DSP application modules already installed.
Note: The RLC shipped from Nortel with one DSP module built in. Your
response here must include that module.
8 Calculate how many DSP modules you need to purchase.
Subtract your step 7 answer from your step 4 answer.
Note: Only four DSP application modules can be installed on the NTDR68xx
Line Card. Up to four DSP application modules can be installed on the
NTDR70xx or NTDR71xx Line Cards.
9 Record the number of DSP application modules already installed.
Note: The RLC shipped from Nortel with one DSP module built in. Your
response here must include that module.
348
A: fax DSP devices required = 2 / 2= 1
B: voice DSP devices required = 17 / 4= 4.25 = 5
C: 911x DSP devices required = 0 / 4 = 0
total DSP required = 1 + 5 + 0 - 2 = 4
total DSP application modules required = 2
RLC Installation and Administration Guide
Standard 4.0
Page 4 of 5
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