ICS ELECTRONICS 4809A, Instruction Manual

Page: 38 / 131

2-17
2
RS-232
AA
BA
BB
CA
CB
AB
CF
CD
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
TABLE 2-2 4809A/4899A Serial Connector
Signal-Pin Assignments
Direction
In Out
→
←
→
←
←
←
←
→
←
→
→
→
→
→
Signal
Chassis
Send Data (A)
Receive Data (A)
Request-to-Send (A)
Clear-to-Send (A)
Data Set Ready
Ground
Signal Detected (A)
Signal Detected (B)
Clear-to-send (B)
Send Data (B)
Receive Data (B)
4809A Talk LED Dvr-
Request-to-send (B)
Data Terminal Rdy (A)
4809A Listen LED Dvr -
Data Terminal Rdy (B)
RS-422
RS-485
—
SD(A)
RD(A)
RS(A)
CS(A)
RR(A)
RR(B)
CS(B)
SD(B)
RD(B)
RS(B)
TR(A)
TR(B)
Note: Pin 26 is only available on the 4809A
Figure 2-9 4809A J3 Serial Connector Pin Layout
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
PC
Board
Edge
J3