Paradyne 317x E1 Port Rate Next 128 192 256 320 384 448 512 576 640 704, 832 896 960 1024 1088

ACCULINK 317x E1 DSU/CSU

Table C-5

(2 of 3)

Data Port Channel Configuration Options

Port Rate: 384
Next	64	128	192		256		320	384	448	512	576	640	704	768	832	896	960	1024	1088
1152	1216	1280		1344			1408	1472	1536	1600	1664	1728	1792		1856	1920	1984	Prev
OR
Next	56	112	168		224		280	336	392	448	504	560	616	672	728	784	840	896	952
1008	1064	1120		1176		1232		1288	1344	1400	1456	1512	1568	1624		1680	1736	Prev

Data Port Rate (appears when using the block channel allocation method, or when a synchronous data port is assigned to another synchronous data port). Designates the data rate for the port. Available selections depend on the current base rate configured for the port. The factory default for Nx64 is 384 kbps, and for Nx56 is 336 kbps.

NOTE: This configuration option does not appear if the individual channel allocation method (Chan) is selected using the Assign By configuration option.

NOTE: If time-slot 16 is reserved for signaling, the highest port rate (1984 or 1736) does not appear.

NOTE: Changing this configuration option from one rate to another deallocates all DS0 channels assigned to either the Network E1 interface or the DTE Drop/Insert interface.

NOTE: When you enable EDL, 8 kbps of the total bandwidth allocated for this port is not available to the synchronous data port. For example, if you select 256 kbps and EDL is enabled, only 248 kbps are available.

NOTE: When you enable EDL for a synchronous data port and the clock source (either primary or secondary) is set to that synchronous data port, the external device must provide a clock of 8 kbps less than the expected data port rate. For example, if you select 64 kbps, the external clock source must supply a 56 kbps clock signal.

NOTE: For the 3174 DSU/CSU there is a hardware limitation that limits the combined bandwidth used by Port1 and Port3 to a total of 2048 kbps and the combined bandwidth used by Port2 and Port4 to 2048 kbps. Thus, when entering this menu, the rate choices are limited due to this constraint. This limitation only occurs in configurations mapping a port to a port or when mapping ports to the DTE Drop/Insert interface and to the network.

Start At:

Next

Clear

N1

N2

N3

N4

N5

N6

N7

N8

N9

N10

N11

...

N31

Prev

OR

Start At:

Next

Clear

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

D11

...

D31

Prev

Data Port Channel Allocation (appears for the block method only). Designates the starting DS0 channel (N1±N31 for the Network E1 interface and D1±D31 for the DTE Drop/Insert interface).

Available selections are only those DS0 channels that provide enough bandwidth (based on the configured data rate) to be used as a starting channel number.

Select the desired starting channel number by pressing the Function key under that number. When you make the selection, the E1 DSU/CSU allocates the correct amount of DS0 channels to support the data rate currently configured for the port.

Clear ± Deallocates all DS0 channels for this port from either the Network E1 interface or the DTE Drop/Insert interface.

NOTE: This configuration option does not appear if the individual channel allocation method (Chan) is selected using the Assign By configuration option, or if Prtn is selected using the Assign To configuration option.

C-10 December 1996 3170-A2-GB20-20