Motorola UTA220/UTA220k User Manual page 152

Interfaces
Table D-4: Ports 3 and 4 Pin Functions
DB- EIA-232/V.24 Mode
25 Pin
EIA-
232E
Pin
1 AA 101
2 BA 103
3 BB 104
4 CA/CJ 105
5 CB 106
6 CC 107
7 AB 102
8 CF 109
9 (Re- +
served)
10 (Re- +
served)
11 - 126
12 SCF/CI 122/
112
13 SCB 121
14 SBA 118
15 DB 114
16 SBB 119
17 DD 115
18 LL 141
19 SCA 120
D-4
V.24 Function
Pin
Frame Ground
(FG)
Transmitted Data
to UTA (TC)
Received Data
from UTA (RD)
Request to Send
(RTS)
Clear to Send
(CTS)
Data Set Ready
(DSR)
Signal Ground
(SG or GND)
Data Carrier Detect
(CD or DCD)
(Not Connected)
(Not Connected)
(Not Connected)
(Not Connected)
(Not Used)
(Not Used)
(Not Used)
(Not Used)
(Not Used)
Local Loopback
(Not Connected)
UTA220/UTA220k
EIA-366 Mode
EIA- Function
366
Pin
Shield Frame Ground
DPR Digit Present
ACR Abandon Call and
Retry
CRQ Call Request
PND Present Next Digit
PWI Power Indication
SG Signal Ground
- (Not Used)
- (Not Connected)
- (Not Connected)
- (Not Connected)
- (Not Connected)
DSC Distant Station
Connected
NB1 Digit Lead 1
NB2 Digit Lead 2
NB4 Digit Lead 3
NB8 Digit Lead 4
- DO NOT USE
- (Not Connected)