Samsung OfficeServ 7200 Technical Manual page 32

OfficeServ 7200
TECHNICAL MANUAL
3.3.3 TEPRI
The T1E1PRI(TEPRI) board is a digital trunk interface that supports either T1 or ISDN
PRI service. It also supports Q-Sig/PRI signalling required for networking multiple
systems.
The TEPRI board installs in slots 3, 4 or 5 of main cabinet and slot 3 of expansion
cabinet. The first four LEDs on the front of the card provide the status of the service
(Sync, AIS, Loss and Layer 2 Active states). The second four LED's on the front of the
card display the type of service. The first TEPRI card installed in the OfficeServ 7200 is
the primary source of external clocking. The second TEPRI installed is the secondary
source of external clocking. Default clock selection is first cabinet, left to right then
second cabinet. The clock priority can be changed by using MMC 826. The primary
and secondary clock sources should be mounted in the main cabinet to ensure stable
reception of clocking from the primary and secondary sources. Regardless of position
a CO PRI circuit should always be given clocking priority over T1 circuits. There are two
RJ45 modular jacks on the face of the card. The settings for T1 or PRI service are
selected by a bank of dip switches as defined below. The PRI supports NI1, NI2, AT&T
No. 5 ESS, and DMS 100 offices. A maximum of 4 TEPRI cards can be provided per
system. NOTE: Do not insert this card with system power ON.
Switch No.
1
2
3
4
5
6
7
8
*If this TEPRI card is to be the master of a pair of TEPRI cards that are used to connect
two systems together via PRI networking then this DIP switch, DIP switch 4 must be set
to ON.
**Do not change the settings of DIP switches 3, 5, 6, 7, and 8. Switches 3, 5, 6, and 7
must remain OFF and 8 must be ON.
TEPRI Card Dip Switch
ON
T1
PRI
NFAS (24B)
NETWORK*
AFT
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3.14
Table of Contents
Home Page
INSTALLATION
PART 3 SEPTEMBER 2005
OFF
E1
T1
NFAS (23B + D)
USER
NORMAL
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