11
Table 1: Pin-Out of the DB-9 Connector on the VSSI-Pro
This interface uses the Triport ATM 2CH cable to tap the communication between the ATM machine and modem. (See
pin-out below.)
Table 2: Pin-Out of the DB-9 Male Connector DB-25 Triport
CONNECTING THE VSSI-PRO
VSSI-Pro VIDEO SERIAL ATM INTERFACE
Cable and Connection: Pin-out of the DB-9 connector on the VSSI-Pro.
PIN NUMBER
FUNCTION
DIRECTION
1
ALARM OUT 1
OPEN DRAIN
2
RXD/RXDB (CH 1 RECEIVE DATA)
TO VSSI-PRO
3
TXD (TRANSMIT DATA)
FROM VSSI-PRO
4
RXCA (CH 2 RX CLOCK)
TO VSSI-PRO
5
GND (GROUND)
6
RXDA (CH 2 RECEIVE DATA)
TO VSSI-PRO
7
RXCB (CH 1 RX CLOCK)
TO VSSI-PRO
8
TXDA (TRANSMIT DATA)
FROM VSSI-PRO
9
CTS/RTS
TO VSSI-PRO
DB-9 (MALE) VSSI-Pro
DB-25 TRIPORT
2
2
4
17
5
7
6
3
7
15
WITH DATA-OUT OPTION DB-9 (MALE OR FEMALE) DB-25 (MALE OR FEMALE)
3
2
3
5
5
7
