Dialogic SS7G21 T 1 / E P o r t s, L 1 L, PCM Ports on SPCI4 Boards, PCM Ports on SS7HDP Boards

Chapter 6 Interfaces

Figure 6. PCM Ports on SPCI4 Boards

T 1 / E 1

P o r t s

L 4 L 3

L 2 L 1

Figure 7. PCM Ports on SS7HDP Boards

T 1 / E 1	U n u s e d
P o r t s		P o r t

L 1 L 4

E N E T

The T1/E1 ports on the SS7 Signaling Boards are Safety Extra Low Voltage (SELV), that is, the apparatus connects to the outside network via Network Termination units (NT1). Use twisted-pair, screened cables, grounded at both ends, to ensure the EMC and error-free performance of the product. See also Section 4.3.3, “Telecommunications” on page 28 for information on potential usage as TNV-1 ports.

The connectors are 8-way RJ45, and are labelled L3 and L4 in Figure 5, or L1 to L4 in Figure 6 and Figure 7. These labels can be used together with the SS7 Signaling Board position number (see Section 5.3, “Back Panel” on page 33) to give each port a unique identifier for wiring schedules and unit configuration.

The connector pinout and signal descriptions are shown in Table 5.

Table 5. PCM Interface Ports Connector Pinouts

Pin No	Direction	Function
1	Input	Receive
2	Input	Receive
3	Not applicable	No Connection
4	Output	Transmit
5	Output	Transmit
6	Not applicable	No Connection
7	Not applicable	No Connection
8	Not applicable	No Connection

6.5SS7 Serial Interface Ports

SS7 Signaling Boards of type SPCI2S provide 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. See Appendix A.

The connector is labelled Aux in Figure 8 and on the products. Table 6 identifies the ports as A and B. This can be used with the SS7 Signaling Board position number (see Section 5.3, “Back Panel” on page 33) to give each port a unique identifier for wiring schedules and unit configuration.

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