Port Interfaces - Paradyne Compshere 3000 Series Installation Manual

COMSPHERE 3000 Series Carrier
The async terminal connection uses the:
COM port-to-terminal/printer cable. This cable is a
14-foot, 26 AWG 8-conductor cable with an
8-position modular plug keyed connector and a
DB25 plug connector (see Figure B-7).
COM port adapter connector with an 8-position
keyed modular jack (see Table B-4). The data
signals on this port are referenced to a DTE
interface.
8-Position
Modular
Plug Keyed
1
RX Data
2
Ground
3
TX Data
4
DTR
5
CD
6
RTS
7
8
Figure B-7. COM Port-to-Terminal/Printer Cable
Table B-4
COM Port Adapter Connector (J6)
Signal
Reserved for future use
DCE Received Data
SIGNAL Ground
DCE Transmit Data
DCE Data Terminal Ready
DCE Carrier Detect
DCE Request to Send
Reserved for future use
B-6
DB25
Plug
15
3
RX Data
7
Ground
2 TX Data
20 DTR
8
CD
5 CTS
6 DSR
4 RTS
17
496-14154-03
To/From Pin #
to DTE (Out) 1
to DTE (Out) 2
3
from DTE (IN) 4
from DTE (IN) 5
to DTE (Out) 6
from DTE (IN) 7
to DTE (Out) 8
July 1999

Port Interfaces

The port interface connectors (T1 DSU/CSU only)
include the EIA-530-A DB25 connector. The V.35
connector and the RS-449 connector require an adapter
cable.
EIA-530-A DB25 Port Interface Connector
The EIA-530-A Port Interface connector information is
shown in Table B-5.
Table B-5
EIA-530-A Port Interface Connector
Circuit
Signal
Label
Signal Common AB
Signal Common AC
Transmitted Data BA
Received Data BB
Request to Send CA
Clear to Send CB
Received Line CF
Signal Detector
DCE Ready CC
DTE Ready CD
Transmit Signal DA
Element Timing –
DTE Source
Transmit Signal DB
Element Timing –
DCE Source
Receiver Signal DD
Element Timing –
DCE Source
Local Loopback LL
Remote RL
Loopback
Test Mode TM
To/ Pin
ITU #
From #
102A 7
102B 22, 23
103 To 2 (A)
DCE 14 (B)
104 From 3 (A)
DCE 16 (B)
105 To 4 (A)
DCE
106 From 5 (A)
DCE 13 (B)
109 From 8 (A)
DCE 10 (B)
107 From 6
DCE
108/1, /2 To 20
DCE
113 To 11 (A)
DCE 24 (B)
114 From 12 (A)
DCE 15 (B)
115 From 17 (A)
DCE 9 (B)
141 To 18
DCE
140 To 21
DCE
142 From 25
DCE
3000-A2-GA31-D0