Appendix B
Signal Descriptions
135
FIGURE B-11
ISDN NT Connector
Serial Port
This serial port is located on the I/O board and is designated as J0403.
FIGURE B-12
Serial Port Connector
TABLE B-11
ISDN TE Connector Pin Assignments
Pin
Name
I/O
Pin
Name
I/O
1
isdn_nt_ps3_p
I/O
5
isdn_nt_3
I/O
2
isdn_nt_ps3_n
I/O
6
isdn_nt_4
I/O
3
isdn_nt_1
I/O
7
isdn_nt_ps2_n
I/O
4
isdn_nt_2
I/O
8
isdn_nt_ps2_p
I/O
TABLE B-12
Serial Port Connector Pin Assignments
Pin
Name
I/O
Description
Pin
Name
I/O
Description
1
14
2
sp_txd
O
Transmit Data
15
sp_trxc
I
Transmit Signal Clock
3
sp_rxd
I
Receive Data
16
4
sp_rts
O
Request to Send
17
sp_rtxc
I
Receive Signal Clock
5
sp_cts
I
Clear to Send
18
6
sp_dsr
I
Data Set Ready
19
7
GND
O
Ground
20
sp_dtr
O
Data Terminal Ready
8
sp_dcd
I
Data Carrier Detect
21
1 2 3 4 5 6 7 8
RJ45
NT
13
25
1
14
Summary of Contents for SPARCstation Voyager
Page 9: ...Contents ix test memory 146 power off 147 Glossary 149...
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