EVM-HD-8FXS/DID cable

Unanswered Question
Aug 22nd, 2007

Hi all

i'm doing the configuration of CISCO3825 which used as the voice gateway.i want to use the EVM-HD-8FXS/DID

module to support analog fax or phone.But

i don't know which cable i should select to associate with the module . what is the cable's product number ? and is the cable sent with the module ?

Thanks very much!

I have this problem too.
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rob.huffman Thu, 08/23/2007 - 04:32

Hi Gilin,

Just to add a note to Mikes good info (5 points for this nice work Mike)

Connecting Cisco High-Density Extension Modules to the Network - ***Make sure you order the RJ21 with a "MALE" connector***

The Cisco high-density extension module is connected to a distribution frame or patch panel with an RJ-21 cable.** RJ-21 cables are not provided with the network module.

Here are the parts you would need to connect to a 24 port rack mounted Patch Panel (without needing to terminate the cable with Bix or 110 connecting tools).

Cisco RJ21 Cables

http://www.stonewallcable.com/product.asp?dept%5Fid=102&pf%5Fid=SC%2D9754

24 Port with RJ21 Male

http://www.cablingsys.com/iteminfo.asp?productcode=017-224M62U

These are just examples :) I have not checked pricing $$

Hope this helps!

Rob

Youssef Aoufi Tue, 08/06/2013 - 19:54

Hi there ,

I have a doubt about connecting the RJ 21 cable to the EVM-HD-8FXS/DID .

The gateway is identifying 8 voice ports, and the RJ-21 has 25 pairs .

For VG224 all pairs are used , each port is connected to one pair.

My question is which color pair corresponds to this 8 voice ports?

Regards

Youssef Aoufi Tue, 08/06/2013 - 19:56

We have tested the first par blue-white with the first voice-port but i get no dial tone.

Any help is much appreciated

Aman Soi Tue, 08/06/2013 - 21:13

Hi,

You need to follow the pin out sequence.please refer this pinout and pin sequence.

If u want to use colour option then, u can use multimeter on Buzz/Beep  option and connect one end to pin and other end to the cable.

RJ-21 Connector Pinouts

Port Number

Connector Pin Number

Signal

Port Number

Connector Pin Number

Signal

1

1
26

Ring
Tip

13

13
38

Ring
Tip

2

2
27

Ring
Tip

14

14
39

Ring
Tip

3

3
28

Ring
Tip

15

15
40

Ring
Tip

4

4
29

Ring
Tip

16

16
41

Ring
Tip

5

5
30

Ring
Tip

17

17
42

Ring
Tip

6

6
31

Ring
Tip

18

18
43

Ring
Tip

7

7
32

Ring
Tip

19

19
44

Ring
Tip

8

8
33

Ring
Tip

20

20
45

Ring
Tip

9

9
34

Ring
Tip

21

21
46

Ring
Tip

10

10
35

Ring
Tip

22

22
47

Ring
Tip

11

11
36

Ring
Tip

23

23
48

Ring
Tip

12

12
37

Ring
Tip

24

24
49

Ring
Tip

25, 50, 51, 52

GND

regds,

aman

Youssef Aoufi Wed, 08/07/2013 - 05:06

Hi aman,

Following this color code :

-- R1/T1 will be the voice-port 1

-- R2/T2 will be the voice-port 2

.

.

.

--R8/T8 will be the voice-port 8

The rest of the pins are not used.

Is that correct?

Aman Soi Wed, 08/07/2013 - 05:28

Hi,

It is a good coloured pin out you have shared.The R1/T1 , R2/T2 ,..........R24/T24 sequence which u have shared is correct.

The rest of pins would be used provided u are going to use all 24 ports.

regds,

aman

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