HiPath HG 1500 boards
lan2de.c02
A31003-K5020-S100-6-7620
Service Manual
2-11
For internal use only
Installation
Note
Direct Ethernet twisted-pair connection to HiPath HG 1500
The RJ45 cable must be crossed as follows:
2.1.2.1 HXGM V.24 interface
The Serial Interface Cable (SIC, S30122-K5468-X3-*) can be connected via a 6-pin
MiniDin socket on the front panel of the HXGM. The SIC performs level conversion
from TTL signals (HXGM2) to V.24 (9-pin Sub-D socket). Depending on the SIC, the
maximum authorized transmission rate for the V.24 interface is 19.2 kBit/s. Asynchro-
nous transmission only is supported.
The interface is used for administration purposes. It can be used for software updates
or board configuration. It can also be used for software debugging.
Table 2-11
Contact assignment of the HXGM LAN interfaces
X9 (LAN1)
10/100 Base-T
X8 (LAN 2)
10 Base-T
Function
1
1
Transmit: + wire
2
2
Transmit: - wire
3
3
Receive: + wire
6
6
Receive: - wire
4+5+7+8
4+5+7+8
not used
1 <> 3
2 <> 6
3 <> 1
6 <> 2
Table 2-12
V.24 socket assignment (HXGM2)
Pin
Signal
I/O
Function
1
GND
2
TXD
O
Transmit Data
3
CTS
I
Clear to Send
4
RXD
I
Receive Data
5
RTS
O
Request to Send
6
+5V
