It's called a 66 block. It's used in the telephony system as "punch down." This is where you centralize all the cabling for the building. You run all the internal cables to this, then have one external line for egress.
It's called a 66 block. It's used in the telephony system as "punch down." This is where you centralize all the cabling for the building. You run all the internal cables to this, then have one external line for egress.