ADTRAN 1200305L1 Octal Ethernet Switch Option Module (P/N 1200766L1)

Section 2, Engineering Guidelines ATLAS 550 System Manual
46 © 2002 ADTRAN, Inc. 61200305L1-1F
Octal Ethernet Switch Option Module (P/N 1200766L1)
The Octal Ethernet Switch Option Module provides eight (RJ-48C) interfaces that can operate as 10BaseT
or 100BaseTX. Table 32 gives the pinout for the Ethernet connection.
22 J 125 Ring indicator (RI) to DTE
3 R 104 Received data (RD-A) to DTE
3 T 104 Received data (RD-B) to DTE
17 V 115 RX clock (RC-A) to DTE
17 X 115 RX clock (RC-B) to DTE
2 P 103 Transmitted data (TD-A) from DTE
2 S 103 Transmitted data (TD-B) from DTE
15 Y 114 TX clock (TC-A) to DTE
15 AA 114 TX clock (TC-B) to DTE
24 U 113 External TX clock (ETC-A) from DTE
24 W 113 External TX clock (ETC-B) from DTE
- NN 142 Test mode (TM) to DTE
Table 32. Ethernet Pinout
PIN NAME DESCRIPTION
1 TX1 Transmit Positive
2 TX2 Transmit Negative
3 RX1 Receive Positive
4, 5 UNUSED —
6 RX2 Receive Negative
7, 8 UNUSED —
Table 31. EIA-232 and V.35 Connection Pinouts (Continued)