Northern UTA220/UTA220k Manuel D’Utilisation
UTA220/UTA220k
D-5
Interfaces
EIA-366A
Requirements
Requirements
The EIA-366 revision changed the function of pin 18 to receive
common. If an EIA-366A device will be connected to the port,
a special cable with the following connections must be used:
common. If an EIA-366A device will be connected to the port,
a special cable with the following connections must be used:
20
CD
108/
1,/2
1,/2
Data Terminal
Ready (DTR)
Ready (DTR)
-
(Not Used)
21
RL/CG
140/
110
110
Remote Loopback
-
(Not Used)
22
CE
125
Ring Indicator (RI)
DLO
Data Line Occupied
23
CH/CI
111/
112
112
(Not Used)
-
(Not Used)
24
CE
113
(Not Connected)
-
(Not Connected)
25
TM
142
Test Mode
-
(Not Used)
Table D-4:
Ports 3 and 4 Pin Functions
(Continued)
DB-
25 Pin
EIA-232/V.24 Mode
EIA-366 Mode
EIA-
232E
Pin
V.24
Pin
Function
EIA-
366
Pin
Function