DS26521 datasheet(116/258 Pages) MAXIM

116 / 258 page

DS26521 Single T1/E1/J1 Transceiver

116 of 258

RS1 to RS16

Receive-Signaling Registers 1 to 16

040h to 04Fh

T1 Mode:

(MSB)

(LSB)

CH1-A

CH1-B

CH1-C

CH1-D

CH13-A

CH13-B

CH13-C

CH13-D

RS1

CH2-A

CH2-B

CH2-C

CH2-D

CH14-A

CH14-B

CH14-C

CH14-D

RS2

CH3-A

CH3-B

CH3-C

CH3-D

CH15-A

CH15-B

CH15-C

CH15-D

RS3

CH4-A

CH4-B

CH4-C

CH4-D

CH16-A

CH16-B

CH16-C

CH16-D

RS4

CH5-A

CH5-B

CH5-C

CH5-D

CH17-A

CH17-B

CH17-C

CH17-D

RS5

CH6-A

CH6-B

CH6-C

CH6-D

CH18-A

CH18-B

CH18-C

CH18-D

RS6

CH7-A

CH7-B

CH7-C

CH7-D

CH19-A

CH19-B

CH19-C

CH19-D

RS7

CH8-A

CH8-B

CH8-C

CH8-D

CH20-A

CH20-B

CH20-C

CH20-D

RS8

CH9-A

CH9-B

CH9-C

CH9-D

CH21-A

CH21-B

CH21-C

CH21-D

RS9

CH10-A

CH10-B

CH10-C

CH10-D

CH22-A

CH22-B

CH22-C

CH22-D

RS10

CH11-A

CH11-B

CH11-C

CH11-D

CH23-A

CH23-B

CH23-C

CH23-D

RS11

CH12-A

CH12-B

CH12-C

CH12-D

CH24-A

CH24-B

CH24-C

CH24-D

RS12

E1 Mode:

(MSB)

(LSB)

RS1

CH1-A

CH1-B

CH1-C

CH1-D

CH16-A

CH16-B

CH16-C

CH16-D

RS2

CH2-A

CH2-B

CH2-C

CH2-D

CH17-A

CH17-B

CH17-C

CH17-D

RS3

CH3-A

CH3-B

CH3-C

CH3-D

CH18-A

CH18-B

CH18-C

CH18-D

RS4

CH4-A

CH4-B

CH4-C

CH4-D

CH19-A

CH19-B

CH19-C

CH19-D

RS5

CH5-A

CH5-B

CH5-C

CH5-D

CH20-A

CH20-B

CH20-C

CH20-D

RS6

CH6-A

CH6-B

CH6-C

CH6-D

CH21-A

CH21-B

CH21-C

CH21-D

RS7

CH7-A

CH7-B

CH7-C

CH7-D

CH22-A

CH22-B

CH22-C

CH22-D

RS8

CH8-A

CH8-B

CH8-C

CH8-D

CH23-A

CH23-B

CH23-C

CH23-D

RS9

CH9-A

CH9-B

CH9-C

CH9-D

CH24-A

CH24-B

CH24-C

CH24-D

RS10

CH10-A

CH10-B

CH10-C

CH10-D

CH25-A

CH25-B

CH25-C

CH25-D

RS11

CH11-A

CH11-B

CH11-C

CH11-D

CH26-A

CH26-B

CH26-C

CH26-D

RS12

CH12-A

CH12-B

CH12-C

CH12-D

CH27-A

CH27-B

CH27-C

CH27-D

RS13

CH13-A

CH13-B

CH13-C

CH13-D

CH28-A

CH28-B

CH28-C

CH28-D

RS14

CH14-A

CH14-B

CH14-C

CH14-D

CH29-A

CH29-B

CH29-C

CH29-D

RS15

CH15-A

CH15-B

CH15-C

CH15-D

CH30-A

CH30-B

CH30-C

CH30-D

RS16

In the ESF framing mode, there can be up to four signaling bits per channel (A, B, C, and D). In the D4 framing

mode, there are only two signaling bits per channel (A and B). In the D4 framing mode, the framer will repeat the A

and B signaling data in the C and D bit locations. Therefore, when the framer is operated in D4 framing mode, the

user will need to retrieve the signaling bits every 1.5ms as opposed to 3ms for ESF mode. The receive-signaling

registers are frozen and not updated during a loss of sync condition. They will contain the most recent signaling

information before the “OOF” occurred.

DS26521 Datasheet(PDF) 116 Page - Maxim Integrated Products

DS26521 Datasheet(HTML) 116 Page - Maxim Integrated Products

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