Adjuncts and Peripherals
909A/B universal coupler
SI Installation and Upgrades
831
June 2004
Figure 323: Typical PRI to BRI converter cabling
NOTE:
The inset shows details of the cable connections between the circuit packs.
909A/B universal coupler
The 909A/B universal coupler is used with paging, malicious call trace, and music-on-hold equipment
that is not approved for use with the public network.
Figure 324
shows a typical 909A/B universal coupler. For additional installation and switch setting
information, refer to 909A/909B Universal Coupler Installation Instructions, which is normally shipped
with the 909A/909B Universal Coupler.
NOTE:
If the music source is registered by the FCC (in the USA) or an equivalent body, the
909A/B universal coupler is not required.
Figure notes
1
TN464GP DS1 circuit pack and PR-to-BRI
converter circuit pack
2
Communication Manager administration PC
3
RS-232 cable to front of converter circuit pack
4
888B 75-ohm coaxial converter
5
Coaxial connection to 2-Mbps facility
6
Coaxial cable from PRI converter
circuit pack to coaxial converter
7
TN464GP circuit pack
8
PRI-to-BRI converter circuit pack
9
Jumper coaxial cable
10
Inset showing connections on rear
of carrier
ALARMS
EMER TR
C
A
R
D
I
N
U
S
E
EN
T
ER
/Y
ES
N
EXT
/N
O
BAC
K
AUDIX
BOO
T
/
SHUT
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O
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0022_1 PDH 062596
7
(2B+D)
1
(2B+D)
8
(2B+D)