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INSTALLATION
WHEN MANUAL FRAMING IS SELECTED (MANF IS ON):
SELECT OFF FOR ESF FRAMING ON THE NETWORK SIDE.
SELECT ON FOR D4 FRAMING.
NETD4
NETD4
EQESF
MANF
QRS
B8ZS
TLB
LBF
39Z
BDA
BDB
PMC
CF1
CF2
SLAVE
IFP
ILB
FRONT
NOTE 1: OPTIONS ARE SELECTED AS SHIPPED FROM THE FACTORY.
PANEL
NOTE 2: THIS OPTION IS NOT AFFECTED BY CONFIGURATION FROM THE SUPERVISORY TERMINAL.
NOTE 3: REFER TO OPTION SELECTION FOR USE OF THIS SWITCH WHEN REPLACING AN OLDER
DataComm 551 WITH A NEWER ONE.
FIGURE 2-3. OPTION SWITCH AND JUMPER SELECTIONS (Sheet 2 of 2)
2-12
MANF
SELECT OFF FOR AUTOMATIC SELECTION OF FRAMING TYPE FOR BOTH SIDES.
SELECT ON FOR MANUAL SELECTION (USE EQESF AND NETD4 TO SELECT TYPE FOR EACH SIDE).
QRS
SELECT OFF FOR 511 BIT ERROR RATE TEST PATTERN.
SELECT ON FOR QUASI-RANDOM SIGNAL (QRS) TEST PATTERN.
B8ZS
SELECT OFF FOR AMI LINE CODE.
SELECT ON FOR B8ZS LINE CODE.
WHEN IN-BAND LOOPBACK TEST CODE DETECTION IS ENABLED (ILB IS OFF):
TLB
SELECT OFF TO PERFORM LINE LOOP.
SELECT ON TO PERFORM TEST LOOP.
LBF
SELECT OFF FOR UNFRAMED INBAND LOOPBACK TEST CODES.
SELECT ON FOR FRAMED CODES.
39Z
SELECT OFF FOR MAXIMUM OF 15 CONSECUTIVE ZEROS.
SELECT ON FOR 39 ZEROS.
SELECT THE DATA RATE TO MATCH THE
BDA
SUPERVISORY TERMINAL, AS FOLLOWS:
BDB
19.2 K 9600 4800 2400
SEE NOTES
BDA
ON
2 & 3
BDB
OFF
PMC
SELECT OFF FOR USE WITHOUT A PMC-100 (SUPV. PORT IS ACTIVE, 485 BUS INACTIVE).
SELECT ON FOR USE WITH A PMC-100 (485 BUS IS ACTIVE, SUPV. PORT IS INACTIVE).
SEE
NOTE 3
SELECT THE CHARACTER FORMAT TO MATCH THE SUPERVISORY
CF1
TERMINAL, AS FOLLOWS (WORD LENGTH/PARITY/STOP BITS):
CF2
8/N/1
SEE
CF1
OFF
NOTE 2
CF2
OFF
SLAVE
SELECT OFF FOR MASTER CSU (ALLOWS CONFIGURATION VIA THE SUPERVISORY TERMINAL).
SELECT ON FOR SLAVE CSU (PREVENTS CONFIGURATION VIA THE SUPERVISORY TERMINAL).
SEE NOTE 3
IFP
SELECT OFF TO ALLOW USE OF FRONT PANEL TEST SWITCHES.
SELECT ON TO INHIBIT THEM.
SELECT OFF TO ENABLE IN-BAND LOOPBACK TEST CODE DETECTION
ILB
(USE TLB TO SELECT TYPE OF LOOPBACK TO BE PERFORMED).
SELECT ON TO DISABLE IT.
WHEN MANUAL FRAMING IS SELECTED (MANF IS ON):
EQESF
SELECT OFF FOR D4 FRAMING ON THE EQUIPMENT SIDE.
SELECT ON FOR ESF FRAMING.
OFF
OFF
ON
OFF
ON
ON
7/N/1
7/O/1
7/E/1
OFF
ON
ON
ON
OFF
ON
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