Nortel Networks Circuit Card 311 - Manual (Page 846)

846 NTAG26 XMFR card
Immunity to Impulse Noise Better than: < 1/2500 calls
Test:
10 digit calls
nominal frequency @ -23 dBmO
ON/OFF = 50ms/50ms
KP duration 100 ms
SNR = -12 dBs
all digits ATT Digit Simulation Test, Tape #201 from PUB
56201
Error Rate from Power Lines Better than: < 1/2500 calls
Test:
10 digit calls
nominal frequency @ -23 dBmO
ON/OFF = 50 ms/50ms
KP duration 100 ms
60 Hz signal @ 81 dBrnc0 (-9dBm)
or
180 Hz signal @ 68 dBrnco (-22dBm)
all digits
Tolerate Intermodulation: Must tolerate @A-B and @B-A modulation products with
a power sum
28 dB below each frequency component level of the
signals.
KP:
KP activation
The receiver must not respond to signals prior to KP.
Remain unlocked until ST, STP, ST2P or ST3P is received.
Multiple KP’s After the initial KP, subsequent KP’s are ignored while in
unlocked mode.
Excessive Components: If more than two valid frequencies are detected, no digit is
reported to the SL-1 CPU.
The XMFR receiver specifications conform to the following:
• TR-NPL-000258, Compatibility Information for F.G.D. switched access
service, Bell Communication Research Technical Reference, Issue 1.0,
October 1985.
• TR-NPL-000275, Notes on the BOC Intra-LATA Networks, Bell
Communication Research Technical Reference, Chapter 6, 1986.
Physical specifications
The physical specifications required by the NTAG26 XMFR circuit card are
shown in
Table 335 "Physical specifications" (page 847) :
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright © 2003-2008, Nortel Networks
.