Installation manual

COMSPHERE 3000 Series Carrier
A-8 March 2001 3000-A2-GA31-F0
D-Lead Control Interface
The COMSPHERE dial/lease D-lead control interface
is used in modem-pooling applications to cause the
modem to go off-hook in the Originate mode. This
interface is provided on connector J1 for Slots 1–8 and
connector J2 for Slots 9–16.
Table A-13 provides the D-lead control interface pin
assignments.
Table A-13
D-Lead Control Interface
Slot
Connector Pin # Signal Name*
1 J1 16
15
DLCTL
NC
2 J1 14
1
DLCTL
NC
3 J1 2
3
DLCTL
NC
4 J1 4
5
DLCTL
NC
5 J1 6
7
DLCTL
NC
6 J1 8
9
DLCTL
NC
7 J1 10
11
DLCTL
NC
8 J1 12
13
DLCTL
NC
— J2 25 SIG GND
9 J2 16
15
DLCTL
NC
10 J2 14
1
DLCTL
NC
11 J2 2
3
DLCTL
NC
12 J2 4
5
DLCTL
NC
13 J2 6
7
DLCTL
NC
14 J2 8
9
DLCTL
NC
15 J2 10
11
DLCTL
NC
16 J2 12
13
DLCTL
NC
— J2 25 SIG GND
* DLCTL = D-Lead Control NC = No Connection
SIG GND = Signal Ground