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Joined: Nov 2011
Posts: 3
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Member
Joined: Nov 2011
Posts: 3 |
Unless otherwise indicated in an equipment print. The TR represent the transmit "IN" to the equipment, and the T1R1 is the Receive "OUT" from the equipment. Standard transmission convention for all WeCO/Lucent channel bank equipment, such as D4's.
However with Digital Loop Carriers (DLC's AKA: SLC's) instead of a TR/T1R1 frame block designation, the associated PG cable pairs function with an equivalent assignment relative to the IN/OUT of the channel units. TR = ODD cable Pair/BP. T1R1 = Even cable Pair/BP. PG cable pair or BP 01 is the INPUT to a 4W DLC channel unit. PG cable pair or BP 02 is the OUTPUT from a 4W DLC channel unit.
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