2: Functional Description
PremierWave® 2050 Through-Hole Adapter Integration Guide
19
Table 2-7 Ethernet Port Signals
Pin Name
Description
PremierWave
2050 Pins
Signal Requirement
RJ45
MagJack
Belfuse,
08B0-1D1T-
06-F Pin
assignment
ERXM
Ethernet Receive Negative signal. 16
100 ohm differential
pair with ERXP
5
EXRP
Ethernet Receive Positive signal.
14
100 ohm differential
pair with ERXM
4
ETXM
Ethernet Transmit Negative
signal.
8
100 ohm differential
pair with ETXP
3
ETXP
Ethernet Transmit Positive signal. 6
100 ohm differential
pair with ETXM
2
RXCT
Center tap for receive pair.
12
Route > 20 mil width
6
TXCT
Center tap for transmit pair
10
Route > 20 mil width
1
Chassis
Unit chassis
-
RJ45 connector shield
Shield tabs
E_LNKACT Link / activity LED. Active low.
Solid for link, blink for activity.
20
Route to LED cathode
through 220 ohm or
greater.
9
E_SPEED
Link Speed Active low for
100Mbps, Off (high) for 10Mbps.
18
Route to LED cathode
through 220 ohm or
greater.
7
3V3
3.3 V power
3.3V power, connect to
LED anodes.
8, 10
Figure 2-8 Ethernet Connections to an External 10/100 RJ45 Magnetic Jack (J5)
