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RFL Electronics Inc. 

 
 

I N S T R U C T I O N   D A T A 

 
 

RFL DS-961DE Five-Port Multi-Rate  

Synchronous Data Module 

 
 

DESCRIPTION 

 

The DS-961DE is a five-port multi-rate synchronous data channel module, designed for use in IMUX 
2000 E1 Multiplexers. The module uses an RS-232C interface to enable transmission of up to five 9.6 
kbps or two 19.2 kbps data signals over E1 and other digital communications facilities, using only one 
64 kbps time slot. 
 
The DS-961DE has three switch banks, one setup jumper, and four LEDs, one each for channels 
transmitting, channels receiving data, no framing bit, and transmit fault. 
 
The DS-961DE is remote-controllable when installed in an RFL remote controllable shelf. The 
following module parameters can be configured remotely via SCB or locally via DIP switches.  
 
User-adjustable switches and jumpers allow configuration of the following parameters: 

o  Data rate selection from 1200 bps to 19.2 kbps 

o  Optional three-channel operation (two at 19.2 kbps, one at 9.6 kbps) 

o  Selection of transmit timing or terminal timing 

o  Selectable transmit/receive direction for drop and insert operation 

o  Optional timing inversion 

o  Switchable loopback of all channels at the receive side 

o  Time slot selection 

 

 

RFL DS-961DE 

 

RFL Electronics Inc. 

October 15, 2004 

                         1 

(973) 334-3100 

Summary of Contents for DS-961DE

Page 1: ...ng channels receiving data no framing bit and transmit fault The DS 961DE is remote controllable when installed in an RFL remote controllable shelf The following module parameters can be configured remotely via SCB or locally via DIP switches User adjustable switches and jumpers allow configuration of the following parameters o Data rate selection from 1200 bps to 19 2 kbps o Optional three channe...

Page 2: ...or 9600 bps Two channel operation A common rate of 19 2 kbps Three channel operation Two channels at 19 2 kbps one at 9600 bps Timing Selectable internal or external Buffer Three bit when using external timing source terminal timing Time Slot Five channels occupy a single selectable 64 kbps time slot RS 232 Interface Supports TXD RXD RX TIMING TX TIMING TERMINAL TIMING GROUND Remote Interface Comp...

Page 3: ...helf where the module will be installed The RFL DS 961DE module occupies one module slot in the Main Shelf or Expansion Shelf 3 Each module in the IMUX 2000 multiplexer requires a Module Adapter The module adapter provides the appropriate connector for the desired interface The DS 961DE Data Module uses an MA 404A Module Adapter The MA 404A accepts up to five RS 232C lines via RJ 11 modular input ...

Page 4: ...the module is occupying Table 3 shows the switch settings for the module address Consult your multiplexer manual for details on using the remote access and configuration features of the system 7 Set the channel configuration jumpers To use this module in five channel mode at any data rate or in two channel mode at 19 2 kbps set jumper J1 to the NORMAL position as shown in Table 1 and Figure 4 Set ...

Page 5: ...mper Settings for various modes of operation DS 961D MA 404A Mode Of Operation Data Rate Switch Setting Jumper Setting Jumper Settings 2 Channel CH1 and CH2 Fixed at 19 2kbps SW3 3 set to UP J1 set to NORMAL J1 J2 and J3 set to NORMAL 3 Channel CH1 and CH2 Fixed at 19 2kbps and CH5 fixed at 9 6kbps SW3 3 set to UP J1 set to 3 CHANNEL J1 J2 and J3 set to 3 CHANNEL 5 Channel CH1 to CH5 all set to th...

Page 6: ...ule front panel is flush with the top and bottom of the shelf d Go to step 16 15 If you plan to operate the RFL DS 961DE module under remote control perform the following steps a Set to local control by placing DIP switch SW1 7 in the OFF position b Turn service off by placing DIP switch SW1 8 in the ON position c Slide the module into the selected module slot until it is firmly seated and the mod...

Page 7: ... slot and any other pertinent information The RFL DS 961DE is now installed If your multiplexer is set up for remote access and control you can now change the operating parameters of the module by using simple commands For more information on remote access and control consult your multiplexer operation manual RFL DS 961DE RFL Electronics Inc October 15 2004 7 973 334 3100 ...

Page 8: ...TX BUSY LED SW1 FRM LED TX FAULT LED JMP1 NORMAL mode 3 CHANNEL mode NORM 3 CH Figure 4 Controls and indicators RFL DS 961DE Synchronous Data Module RFL DS 961DE RFL Electronics Inc October 15 2004 8 973 334 3100 ...

Page 9: ...nce with Table 4 SW2 6 TX A BUS UP DOWN Operate via DI B port in a drop insert multiplexer see page 14 Operate in a terminal multiplexer or via DI A port in a drop insert multiplexer SW3 1 SW3 2 RATE 1 RATE 2 Select data rate in 5 Channel mode in accordance with Table 5 SW3 3 SEL 9 6 UP DOWN Selects 2 or 3 Channel mode Ports 1 2 19 2 Selects 5 Channel mode SW3 4 BUF IN UP DOWN Takes buffers out of...

Page 10: ... OFF ON ON 13 OFF ON OFF OFF ON ON 14 ON OFF OFF OFF ON ON 15 OFF OFF OFF OFF ON ON 16 ON ON ON ON OFF ON 17 OFF ON ON ON OFF ON 18 ON OFF ON ON OFF ON 19 OFF OFF ON ON OFF ON 20 ON ON OFF ON OFF ON 21 OFF ON OFF ON OFF ON 22 ON OFF OFF ON OFF ON 23 OFF OFF OFF ON OFF ON 24 ON ON ON OFF OFF ON 25 OFF ON ON OFF OFF ON 26 ON OFF ON OFF OFF ON 27 OFF OFF ON OFF OFF ON 28 ON ON OFF OFF OFF ON 29 OFF O...

Page 11: ...N UP UP DOWN DOWN 20 DOWN UP DOWN UP UP 21 DOWN UP DOWN UP DOWN 22 DOWN UP DOWN DOWN UP 23 DOWN UP DOWN DOWN DOWN 24 DOWN DOWN UP UP UP 25 DOWN DOWN UP UP DOWN 26 DOWN DOWN UP DOWN UP 27 DOWN DOWN UP DOWN DOWN 28 DOWN DOWN DOWN UP UP 29 DOWN DOWN DOWN UP DOWN 30 DOWN DOWN DOWN DOWN UP 31 DOWN DOWN DOWN DOWN DOWN Notes 1 Do not use Time slot 0 is always reserved for E1 framing use 2 Do not use if E...

Page 12: ...hannels together adds a framing bit and feeds the resulting bitstream to the main multiplexer for transmission in the desired direction User selectable switches on the module determine which time slot is used RECEIVE SIDE The high speed multiplexed data from the receive direction enters the receive side of the Logic Array The Logic Array feeds the framing bit to a synchronization counter which pro...

Page 13: ...NVERT CLOCK E 10 LOOPBACK CONTROL 1 2 3 SET CARD 4 ADDRESS 5 6 7 LOCAL REMOTE CONTROL 8 SERVICE ON OFF SW1 1 2 3 SELECT 4 TIME SLOT 5 6 SELECT TX RX BUS SW2 SW3 TDM BUS SERIAL CONTROL BUS CH2 CH3 CH4 CH5 TX DATA TER MINAL TIMING RX DATA TX CLOCK CH2 CH3 CH4 CH5 TX DATA TER MIN AL TIM ING RX DATA RX CLOCK TX CLOCK GRO UND CH1 CH1 Figure 5 DS 961DE Data Module Block Diagram RFL DS 961DE RFL Electron...

Page 14: ...l multiplexer node 1 or node 3 its TX A switch must be set DOWN However when it is installed in a drop and insert multiplexer node 2 the TX A switch setting must be DOWN to transmit and receive via the DI A port toward node 1 and UP to transmit and receive via the DI B port toward node 3 DS 961DE To From Site 2 TX A Switch DOWN DS 961DE To From Site 3 TX A Switch DOWN DS 961DE To From Site 1 TX A ...

Page 15: ... setting the DIP switches on a module under local control P codes also appear in the response to a CONFIG query providing a list of the RFL DS 961DE s current parameter settings A typical RFL DS 961DE response to a CONFIG query looks like this Response This line means OK CHANNEL CARD 1 TYPE 77 UNDER REMOTE CONTROL SRVC ON P01 93 B01011101 P02 128 B10000000 A valid command was received The card add...

Page 16: ...nary issue this command multiplexer address card address SET P1 B00001001 In addition to the P codes it is also possible to turn service on or off for the RFL DS 961DE by sending one of the following commands in the parameter field of a SET command SRVC ON SRVC OFF Table 6 lists the meaning of the P codes for this module RFL DS 961DE RFL Electronics Inc October 15 2004 16 973 334 3100 ...

Page 17: ... and deactivates P1c 1 1 Activates P1c low speed rate select P2b B00000000 0 Selects buffers and timing Note 2 0 Buffers out of circuit module uses internal timing 1 1 Buffers in circuit module uses DTE device timing P2c B00000000 0 Channel 1 clock 0 normal 1 1 inverted Note 3 P2d B00000000 0 Channel 2 clock 0 normal 1 1 inverted Note 3 P2e B00000000 0 Channel 3 clock 0 normal 1 1 inverted Note 3 ...

Page 18: ...oks like this OK CHANNEL CARD 1 TYPE 77 UNDER REMOTECONTROL S01 2 B00000010 Table 7 lists the meaning of the S codes for this module Table 7 Remote Configuration Settings S Codes P Code Digit s and Switch Equivalent Bit Value Description S1a B00000000 0 0 In frame 1 1 Out of frame Note 1 S1b B00000000 0 0 Transmit alarm Note 2 1 1 No transmit alarm 1 When the card is out of frame an ALERT message ...

Page 19: ...on 2 Connect a data error analyzer Telecommunication Techniques Corp Fireberd 2000 or equivalent to the jack for channel one on the back of the module adapter using an RJ 11 cable 3 Check for synchronization on the output signal 4 Send single errors on the transmit side and check for single errors on the receive side 5 Run for 30 seconds and confirm that the signal remains error free Observe that ...

Page 20: ... and checked for accuracy The information in this publication does not constitute a warranty of performance RFL Electronics Inc reserves the right to revise this publication and make changes to its contents from time to time We assume no liability for losses incurred as a result of out of date or incorrect information contained in this publication RFL DS 961DE RFL Electronics Inc October 15 2004 2...

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