N
N
T
T
S
S
-
-
2
2
0
0
1
1
.
.
M
M
A
A
N
N
1
1
-
-
5
5
R
R
e
e
v
v
.
.
A
A
1.12 INTERFACE
SPECIFICATIONS
Ethernet Interface
Frame Format:
DIX Ethernet (Ethernet II) or IEEE 802.3 with 802.2
headers
Connector:
AUI, female 15-pin D subminiature
Pin Assignment
Pin
Assignment
1
GND
2
CI+
3
DO+
4
GND
5
DI+
6
GND
7
NC
8
GND
9
CI-
10
DO-
11
GND
12
DI-
13
+12V
14
GND
15
NC
User RS-232 Serial I/O Interface
Data:
Time, day of year through milliseconds, in ASCII
characters, output once per second or on request.
Also special functions as listed in Section III.
Data Rates:
User selectable, 300, 600, 1200, 2400, 4800, and 9600
bps, 19200
Data Bits:
User selectable, 7 or 8
Parity:
User selectable, even, odd or none
Stop Bits:
User selectable, 1or 2
Connector:
Male 9-pin D subminiature, wired as DTE
