self.parse_group(h5file.root.edges)
                h5file.close()
                self.edges_info[self.current_edge] = load_csv_props(edge_types_file)
                self.current_edge = None

        for conn in self.conn_info:
            
            pre_node = self.conn_info[conn]['pre_node']
            post_node = self.conn_info[conn]['post_node']
            
            print('   Adding projection %s: %s -> %s '%(conn, pre_node, post_node))

            # add all synMechs in this projection to netParams.synMechParams
            for type in self.edges_info[conn]:
                syn_label = self.edges_info[conn][type]['dynamics_params'].split('.')[0]
                if syn_label not in sim.net.params.synMechParams:
                    dynamics_params_file = self.subs(self.network_config['components']['synaptic_models_dir']) +'/'+self.edges_info[conn][type]['dynamics_params']        
                    syn_dyn_params = load_json(dynamics_params_file)
                    synMechParams = dict(syn_dyn_params)
                    for k in synMechParams:  # replace keys
                        if k in synMechSubs:
                            synMechParams[synMechSubs[k]] = synMechParams.pop(k) 
                    synMechParams['mod'] = self.edges_info[conn][type]['model_template']
                    sim.net.params.synMechParams[syn_label] = synMechParams
                    print('   Added synMech %s '%(syn_label))

            # add individual connections in this projection
            for i in range(len(self.conn_info[conn]['pre_id'])):
                pre_id = self.conn_info[conn]['pre_id'][i]
                post_id = self.conn_info[conn]['post_id'][i]
                pre_gid = self.cell_info[pre_node]['gid_from_id'][pre_id] 
                post_gid = self.cell_info[post_node]['gid_from_id'][post_id]