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Model M - Mediatrix G7 Series
25
Pin #
NT Mode
TE Mode
5
Receive #1 (-)
Transmit #1 (-)
6
Not connected
Not connected
7
Not connected
Not connected
8
Not connected
Not connected
BRI S/T Connection (RJ-48)
Caution:
Always use standard telecommunication cables with a minimum of 26 AWG wire
gauge.
BRI S/T connections use two pairs of wires: one pair for transmission and the second pair for
reception. It is wired so that pins 3 and 6 are on one twisted pair and pins 4 and 5 are on a second
pair according to common wiring standards which meet the TIA/EIA 568A and 568B requirements.
Caution:
The Mediatrix unit ISDN BRI ports are configurable to operate as network or
terminal ports. The pin-out of the sockets is switched according to this configuration. Wrong
port configurations, wrong cabling or wrong connections to neighbouring equipment can lead
to short circuits in the BRI line powering.
Pin#
TE mode
NT mode
1
Not Connected
Not Connected
2
Not Connected
Not Connected
3
Tx +
Rx +
4
Rx +
Tx +
5
Rx -
Tx -
6
Tx -
Rx -
7
Not connected
Not Connected
8
Not connected
Not Connected
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