Welltech SPCI2S Boards - Manual (Page 32)

Section 6 Interfaces
32
The connectors are 8-way RJ45, and are labeled L1 to L4 in Figure 2 on page
31 and on the product (L3 and L4 only for SPCI2S in Figure 3 below ). The
connector pin out and signal descriptions are shown in Table 3 below . Note
that pin 1 is towards the top of the board for each RJ45 connector.
Table 3. PCM Interface Ports Connector Pin-Out
Pin No Direction Function
1 Input Receive
2 Input Receive
3 N/C
4 Output Transmit
5 Output Transmit
6 N/C
7 N/C
8 N/C
6.4 SS7 Serial Interface Ports (SPCI2S)
Figure 3. SPCI2S Connector Positions
Each SPCI2S board provides two synchronous SS7 Serial Interface Ports.
Both ports are presented in a single 26 way female high density D-type
connector, and use V.11 (V.35 compatible) electrical interface characteristics.
The connector is labeled AUX in Figure 3 above and on the product. The
connector pin-out and signal assignment is shown in Table 4 on page 33 ,
which identifies the ports as A and B.
The SS7 Serial Interface Ports on the SPCI2S board are designated as SELV.
Install the ferrite clamp, provided with this product, on the SS7 Serial
Interface Port cable, close to the connector backshell, to ensure the EMC
performance of the product.
The SS7 Serial Interface Port may be clocked either by an internally
generated clock or by an externally applied clock. In both cases the same
clock is used for both the Transmit data and the Receive data.
For internal clock operation use the Transmit clock pins and make no
connection to the Receive clock pins on the D-type connector. For external
clock operation connect the clock source to the Receive clock pins on the D-
type connector and make no connection to the Transmit clock pins.
A U X
(V .1 1 )
L 3
L 4
A D D R B O O T
J 3
L ic e n c e
B u tto n
U s e r
L E D s
V .1 1 S e ria l In te rfa c e
B o a r d
H .1 0 0
C o n n e c to r
C B A
C L K T E R M