CDM-Qx Satellite Modem

Revision 5

External Connections

MN/CDMQx.IOM

4.4.8Quad E1 Data Interface Connectors

The (2) Data connectors on the Quad E1 interface card are 9-pin ‘D’ type female (DB- 9F). Refer to Table 4-xx for pin assignments. J1 and J2 are shown below. Also available is an adapter y-cable to adapt the DB9 to (2) RJ45 jacks, (part number PL/xxxTBD), see Table xx and figure xx.

Table 4-xx6. Quad E1 Data Interface J1 Connector Pin Assignments

Pin #

Signal Function

Name

Direction

5

DDI (+)

Port1_Tx+

In

9

DDI (-)

Port1_Tx–

In

4

IDO (+)

Port1_Rx+

Out

8

IDO (-)

Port1_Rx–

Out

3

Ground

Gnd

-

7

DDI (+)

Port2_Tx+

In

2

DDI (-)

Port2_Tx–

In

6

IDO (+)

Port2_Rx+

Out

1

IDO (-)

Port2_Rx–

Out

Table 4-xx7. Quad E1 Data Interface J2 Connector Pin Assignments

Pin #

Signal Function

Name

Direction

5

DDI (+)

Port3_Tx+

In

9

DDI (-)

Port3_Tx–

In

4

IDO (+)

Port3_Rx+

Out

8

IDO (-)

Port3_Rx–

Out

3

Ground

Gnd

-

7

DDI (+)

Port4_Tx+

In

2

DDI (-)

Port4_Tx–

In

6

IDO (+)

Port4 Rx+

Out

1

IDO (-)

Port4_Rx–

Out

Table 4-xx8. Ext Ref Clock Interface J3 Connector Pin Assignments

Pin #

 

Signal Function

Name

Direction

5

E1

Ref Clock In (+)

Ref_Clk_In (+)

In

9

E1

Ref Clock In (-)

Ref_Clk_In (+)

In

4

Not used

--

--

8

Not used

--

--

3

Ground

Gnd

-

7

Not used

--

--

2

Not used

--

--

6

E1

Ref Clock Out (+)

Ref_Clk_Out (+)

Out

1

E1

Ref Clock Out (-)

Ref_Clk_Out (+)

Out

4–11

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Image 51
Mocomtech CDM-QX Quad E1 Data Interface Connectors, Xx6. Quad E1 Data Interface J1 Connector Pin Assignments