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Cables
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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10/100 Ethernet Connection (RJ-45)
Caution: Always use standard telecommunication cables with a minimum of 26 AWG wire gauge.
Category 5 cables can be used for 10/100 Base T-Connections.
It is possible to use either a crossover or a straight Ethernet cable as the Mediatrix units perform automatic MDI/ MDIX detection, meaning that
they adapt to the type of cables connected to them. The Auto MDI/ MDIX feature only works when the unit are configured in auto detect mode,
which is the default mode.
Pin Name
Description
TIA/EIA 568A TIA/EIA 568B
1
Bl_DA+/Tx+ Bi-directional pair A+ (T) white/green
white/orange
2
Bl_DA-/Tx- Bi-directional pair A- (Transmit-)
green
orange
3
Bl_DB+/Rx+ Bi-directional pair B+ (R) white/orange white/green
4
not used
5
not used
6
Bl_DB-/Rx- Bi-directional pair B- (Receive -)
orange
green
7
not used
8
not used
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Troubleshooting
Locating the Product Serial Number
Before you begin
Warning: Make sure your unit is powered off.
Steps
