Workgroup Remote Access Switch 419LED I NDICATORSWAN LED Indicators* On DMS-100 and NI-1 switches, more than one data link is possible.• The CH-1 and CH-2 indicators signify activity along their respective B channel:PRI LED INDICATORSIn the bank of PRI LED indicators, there is one indicator for each B channel (labeled B1 through B23for T1 lines, and B1 through B31 for E1 lines), a D channel indicator (labeled T1 D for T1 lines, andE1 D for E1 lines), and a Sync indicator.As illustrated below, the D channel indicators are dual labeled. Because the 1200 can use either T1or E1 lines, it is labeled for both. In result, the B16 indicator (B-Channel indicator, number 16) forT1 line doubles as the E1 D channel indicator, and the B24 indicator for E1 lines doubles as the T1D channel indicator.A B channel indicator flashing indicates activity on that B channel. Likewise, a D channel indicatorflashing indicates data link and D channel activity.D-CHAN LED status One Data Link Multiple Data Links*off no activity no activityflashing(mostly off)trying to bring updata linknot all data links are upflashing(mostly on)activitydata link is upactivitydata link is upon solid no activitydata link is upno activitydata link is upCH-1 or CH-2 LEDStatusDescriptionoff no call over channelflashing Data being passed over channel. Speed offlashes depends upon number of frames beingsent.on solid call up, but no data being transferredSERVICE TX RX 10BASE - TLAN B-CHANNELS E1 ONLYB2 B4 B6 B8 B26 B28B22 B24B18 B20B14 B16B10 B12 B30 L1B1 B3 B5 B7 B25 B27B21 B23B17 B19B13 B15B9 B11 B29 B31E1D T1D