Pulse O3-4D1L3 U2 Manual page 11

Table 6. Front-Panel DS1 Connector Pin Assignments
1
2
RING1
3
4
5
SHIELD
6
7
8
RING
9
10
SHIELD 11
12
The front-panel female DB-9 communications interface is an asynchronous VT-100 serial
port. This craft port operates at 9600 baud with 8 bits of data, no parity, no flow control,
and 1 stop bit. Refer to Section 5 for detailed craft port instructions.
Backplane
Backplane pinouts for alarm contacts, power, and ground (GND) are listed in Table 7.
Printed Circuit Board
When the local DS1 provisioning needs to be restored to the factory defaults, the instant
default feature can be used. Unplugging the card, changing the position of switch S1-1,
and plugging the card back in returns all parameters to their default values. Note that the
initial position of S1-1 is not important; the O3-4D1L3 detects a change in the position of
S1-1 during power-up as an instruction to restore parameters to their default values.
Switch positions S1-2, S1-3, and S1-4 are not used. See Figure 6.
Pin
1
2
3
13
4
14
TIP1
15
5
16
6
17
18
7
19
8
20
TIP
21
9
22
10
23
24 11
12
NOTE: Tip/Ring = Signals received from the OC3
11
Signal Pin
Ring1 DS1-1 13
Ring1 DS1-2 14
Ring1 DS1-3 15
Ring1 DS1-4 16
Shield 17
— 18
Ring DS1-1 19
Ring DS1-2 20
Ring DS1-3 21
Ring DS1-4 22
Shield 23
— 24
fiber link (DS1 TX).
Tip1/Ring1 = Signals transmitted into the OC3
fiber link (DS1 RX).
O3-4D1L3 U2
1631, Issue 4, October 2009
Signal
Tip1 DS1-1
Tip1 DS1-2
Tip1 DS1-3
Tip1 DS1-4
—
—
Tip DS1-1
Tip DS1-2
Tip DS1-3
Tip DS1-4
—
—