A bracket assembly that secures a cable to a ladder rung with first and second beam flanges extending from a beam web. The bracket assembly includes a bracket and a tether connected to the bracket. The bracket has a rung attachment portion configured to receive the second beam flange and a cable attachment portion extending from the rung attachment portion. The tether has a retention pin. The tether is slidable between an initial position and a latched position. In the latched position, the retention pin moves into engagement with the rung attachment portion to engage the second beam flange thereby latching the ladder rung to the bracket assembly.