[BC] Signal attenuation required for an SB5102 cable modem?

Hi there, I'm planning on moving my company's cable modem, router, server, and UPS out of the main office and into the electrical room and I'm wondering if I need to attenuate the signal coming off of the 16 port splitter in the Shaw box. The box is unlocked so rather than cutting the perfectly good cable coming out of it and running to the modem's existing location I would just like to attach a new cable to the splitter. The reason I'm wondering if attenuation is required is as follows: The office is in a multi-tenant building and we just recently had Shaw pull cable into the building. The cable comes out of the ground through some sort of terminating connector and into a 16 port splitter inside a box. One of the ports runs into the ceiling and gets split a few times going to the TVs and cable modem, one port comes directly out and goes to the telephone gateway, and the other port goes into a Cisco router/cable modem that is connected to the Shaw Open access points. The cable going to the Cisco modem passes through three 3 dB attenuators. Since the Cisco modem needs three 3 dB attenuators and the cable running to the Motorola modem (in it's current location) goes through at least one or two splitters (which reduce the signal level) I'm wondering if I'm going to need to use some of the 3 dB attenuators to make the Motorola modem to work connected directly to the box. The modem is a Motorola SB5102 and the attenuators are FAM-3HR. The splitters aren't expensive at all but I'd just like to know if they're required before I go to the effort of unplugging everything, redoing all the network cabling, and moving the hardware. Thanks, Kevin