Technical information
Manual Voice Server Espero © Vidicode 2009
145
22 Appendix F APPLICATION NOTE
Product
ProductProduct
Product
: Call Recorder PRI & Fax Server PRI
: Call Recorder PRI & Fax Server PRI: Call Recorder PRI & Fax Server PRI
: Call Recorder PRI & Fax Server PRI
Subject
SubjectSubject
Subject
: How to wire the PRI to the ISDN network
: How to wire the PRI to the ISDN network: How to wire the PRI to the ISDN network
: How to wire the PRI to the ISDN network
Date
Date Date
Date
: FEB 10 2004 / JUNE 01 2006
: FEB 10 2004 / JUNE 01 2006: FEB 10 2004 / JUNE 01 2006
: FEB 10 2004 / JUNE 01 2006
Au
AuAu
Author
thorthor
thor
: VIDICODE / R.J.L. van der Hurk
: VIDICODE / R.J.L. van der Hurk: VIDICODE / R.J.L. van der Hurk
: VIDICODE / R.J.L. van der Hurk
1
1 1
1 -
--
- Preface
Preface Preface
Preface
With primary rate ISDN telephone lines there is unfortunately no
uniform standard regarding the connector type to use and the pin
assignment of that connector.
This means that customers must do the wiring of the PRI between the
public network (PSTN) and privat branche exchange (PBX) using their
own technical staff.
This application note is written to support customers and to have a
reliable installations of the PRI.
2
2 2
2 -
--
- Installation
Installation Installation
Installation
The connectors used on the PRI, to connect the telephone trunk (E1
only) and the PBX, are RJ45 modular types. The pin-assignment is based
on the G.703 standard.
Please note that the pinning of these 2 connectors is different
The Rx twisted pair and Tx twisted pair have approx.120 ohm
impedance.
Label on
PRI
“ISDN IN” “ISDN OUT”
Connect to
PSTN / E1 trunk PBX
PRI - PIN nr PRI signal Connect to PRI signal Connect to
1 Input = R+
Input = R+ Input = R+
Input = R+
T+
T+ T+
T+
Output =
Output = Output =
Output =
T+
T+T+
T+
R+
R+ R+
R+
2 Input = R
Input = RInput = R
Input = R-
--
-
T
TT
T-
--
-
Output = T
Output = TOutput = T
Output = T-
--
-
R
RR
R-
--
-
3 x
xx
x
x
xx
x
x
xx
x
x
xx
x
4 Output =
Output = Output =
Output = R+
R+ R+
R+
Input = R+
Input = R+ Input = R+
Input = R+
T+
T+ T+
T+