... .Support 1/2/4/8 channels Video plus E1, Ethernet, Audio, Data, concentrative management.View the ... 1-128 Channel Digital Video, Audio, Data, E1 and Ethernet Optical Transmission Verified Information This information ... Quantity Number of Year(s) Used Condition E1 Bit Error Tester TL3000EVR 1 4.0 Acceptable Multimeter MS8261 1 ... OPM1-2B 1 1.0 Acceptable Network Cable Tester ST-248 1 4.0 Acceptable Signal ...