Isdn bri leds (s/t or u interfaces), 56/64k dsu/csu leds, Isdn bri leds (s/t or u interfaces) -7 – Nortel Networks Passport ARN Routers User Manual
Page 79: 56/64k dsu/csu leds -7, Table 3-10, Isdn bri leds -7, Table 3-11
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